Try the Anarchist Library site.

I did find one which I will read by Geoffrey Ostergaard. The search for Anarcho-Pacifism on there doesn't pull up as many results as you might expect. "Pacifism" turns up more results, but, a lot of them are critiques of Pacifism. Here's a pretty good wall of text from An Anarchist FAQ:

"A pacifist strand has long existed in anarchism, with Leo Tolstoy being one of its major figures. This strand is usually called “anarcho-pacifism” (the term “non-violent anarchist” is sometimes used, but this term is unfortunate because it implies the rest of the movement are “violent,” which is not the case!). The union of anarchism and pacifism is not surprising given the fundamental ideals and arguments of anarchism. After all, violence, or the threat of violence or harm, is a key means by which individual freedom is destroyed. As Peter Marshall points out, “[g]iven the anarchist’s respect for the sovereignty of the individual, in the long run it is non-violence and not violence which is implied by anarchist values.” [Demanding the Impossible, p. 637] Malatesta is even more explicit when he wrote that the “main plank of anarchism is the removal of violence from human relations” and that anarchists “are opposed to violence.” [Errico Malatesta: His Life and Ideas, p. 53]
However, although many anarchists reject violence and proclaim pacifism, the movement, in general, is not essentially pacifistic (in the sense of opposed all forms of violence at all times). Rather, it is anti-militarist, being against the organised violence of the state but recognising that there are important differences between the violence of the oppressor and the violence of the oppressed. This explains why the anarchist movement has always placed a lot of time and energy in opposing the military machine and capitalist wars while, at the same time, supporting and organising armed resistance against oppression (as in the case of the Makhnovist army during the Russian Revolution which resisted both Red and White armies and the militias the anarchists organised to resist the fascists during the Spanish Revolution — see sections A.5.4 and A.5.6, respectively).
On the question of non-violence, as a rough rule of thumb, the movement divides along Individualist and Social lines. Most Individualist anarchists support purely non-violent tactics of social change, as do the Mutualists. However, Individualist anarchism is not pacifist as such, as many support the idea of violence in self-defence against aggression. Most social anarchists, on the other hand, do support the use of revolutionary violence, holding that physical force will be required to overthrow entrenched power and to resist state and capitalist aggression (although it was an anarcho-syndicalist, Bart de Ligt, who wrote the pacifist classic, The Conquest of Violence). As Malatesta put it, violence, while being “in itself an evil”, is “justifiable only when it is necessary to defend oneself and others from violence” and that a “slave is always in a state of legitimate defence and consequently, his violence against the boss, against the oppressor, is always morally justifiable.” [Op. Cit., p. 55 and pp. 53–54] Moreover, they stress that, to use the words of Bakunin, since social oppression “stems far less from individuals than from the organisation of things and from social positions” anarchists aim to “ruthlessly destroy positions and things” rather than people, since the aim of an anarchist revolution is to see the end of privileged classes “not as individuals, but as classes.” [quoted by Richard B. Saltman, The Social and Political Thought of Mikhail Bakunin p. 121, p. 124 and p. 122]
Indeed, the question of violence is relatively unimportant to most anarchists, as they do not glorify it and think that it should be kept to a minimum during any social struggle or revolution. All anarchists would agree with the Dutch pacifist anarcho-syndicalist Bart de Ligt when he argued that “the violence and warfare which are characteristic conditions of the capitalist world do not go with the liberation of the individual, which is the historic mission of the exploited classes. The greater the violence, the weaker the revolution, even where violence has deliberately been put at the service of the revolution.” [The Conquest of Violence, p. 75]
Similarly, all anarchists would agree with de Ligt on, to use the name of one of his book’s chapters, “the absurdity of bourgeois pacifism.” For de Ligt, and all anarchists, violence is inherent in the capitalist system and any attempt to make capitalism pacifistic is doomed to failure. This is because, on the one hand, war is often just economic competition carried out by other means. Nations often go to war when they face an economic crisis, what they cannot gain in economic struggle they attempt to get by conflict. On the other hand, “violence is indispensable in modern society... [because] without it the ruling class would be completely unable to maintain its privileged position with regard to the exploited masses in each country. The army is used first and foremost to hold down the workers... when they become discontented.” [Bart de Ligt, Op. Cit., p. 62] As long as the state and capitalism exist, violence is inevitable and so, for anarcho-pacifists, the consistent pacifist must be an anarchist just as the consistent anarchist must be a pacifist.
For those anarchists who are non-pacifists, violence is seen as an unavoidable and unfortunate result of oppression and exploitation as well as the only means by which the privileged classes will renounce their power and wealth. Those in authority rarely give up their power and so must be forced. Hence the need for “transitional” violence “to put an end to the far greater, and permanent, violence which keeps the majority of mankind in servitude.” [Malatesta, Op. Cit., p. 55] To concentrate on the issue of violence versus non-violence is to ignore the real issue, namely how do we change society for the better. As Alexander Berkman pointed out, those anarchists who are pacifists confuse the issue, like those who think “it’s the same as if rolling up your sleeves for work should be considered the work itself.” To the contrary, “[t]he fighting part of revolution is merely rolling up your sleeves. The real, actual task is ahead.” [What is Anarchism?, p. 183] And, indeed, most social struggle and revolutions start relatively peaceful (via strikes, occupations and so on) and only degenerate into violence when those in power try to maintain their position (a classic example of this is in Italy, in 1920, when the occupation of factories by their workers was followed by fascist terror — see section A.5.5).
As noted above, all anarchists are anti-militarists and oppose both the military machine (and so the “defence” industry) as well as statist/capitalist wars (although a few anarchists, like Rudolf Rocker and Sam Dolgoff, supported the anti-fascist capitalist side during the second world war as the lesser evil). The anti-war machine message of anarchists and anarcho-syndicalists was propagated long before the start of the first world war, with syndicalists and anarchists in Britain and North America reprinting a French CGT leaflet urging soldiers not to follow orders and repress their striking fellow workers. Emma Goldman and Alexander Berkman were both arrested and deported from America for organising a “No-Conscription League” in 1917 while many anarchists in Europe were jailed for refusing to join the armed forces in the first and second world wars. The anarcho-syndicalist influenced IWW was crushed by a ruthless wave of government repression due to the threat its organising and anti-war message presented to the powerful elites who favoured war. More recently, anarchists, (including people like Noam Chomsky and Paul Goodman) have been active in the peace movement as well as contributing to the resistance to conscription where it still exists. Anarchists took an active part in opposing such wars as the Vietnam War, the Falklands war as well as the Gulf wars of 1991 and 2003 (including, in Italy and Spain, helping to organise strikes in protest against it). And it was during the 1991 Gulf War when many anarchists raised the slogan “No war but the class war” which nicely sums up the anarchist opposition to war — namely an evil consequence of any class system, in which the oppressed classes of different countries kill each other for the power and profits of their rulers. Rather than take part in this organised slaughter, anarchists urge working people to fight for their own interests, not those of their masters:

“More than ever we must avoid compromise; deepen the chasm between capitalists and wage slaves, between rulers and ruled; preach expropriation of private property and the destruction of states such as the only means of guaranteeing fraternity between peoples and Justice and Liberty for all; and we must prepare to accomplish these things.” [Malatesta, Op. Cit., p. 251]

We must note here that Malatesta’s words were written in part against Peter Kropotkin who, for reasons best known to himself, rejected everything he had argued for decades and supported the allies in the First World War as a lesser evil against German authoritarianism and Imperialism. Of course, as Malatesta pointed out, “all Governments and all capitalist classes” do “misdeeds ... against the workers and rebels of their own countries.” [Op. Cit., p. 246] He, along with Berkman, Goldman and a host of other anarchists, put their name to International Anarchist Manifesto against the First World War. It expressed the opinion of the bulk of the anarchist movement (at the time and consequently) on war and how to stop it. It is worth quoting from:

“The truth is that the cause of wars ... rests solely in the existence of the State, which is the form of privilege ... Whatever the form it may assume, the State is nothing but organised oppression for the advantage of a privileged minority ...”

“The misfortune of the peoples, who were deeply attached to peace, is that, in order to avoid war, they placed their confidence in the State with its intriguing diplomatists, in democracy, and in political parties ... This confidence has been deliberately betrayed, and continues to be so, when governments, with the aid of the whole of the press, persuade their respective people that this war is a war of liberation.”

“We are resolutely against all wars between peoples, and ... have been, are, and ever will be most energetically opposed to war.”

“The role of the Anarchists ... is to continue to proclaim that there is only one war of liberation: that which in all countries is waged by the oppressed against the oppressors, by the exploited against the exploiters. Our part is to summon the slaves to revolt against their masters.”

“Anarchist action and propaganda should assiduously and perseveringly aim at weakening and dissolving the various States, at cultivating the spirit of revolt, and arousing discontent in peoples and armies...”

“We must take advantage of all the movements of revolt, of all the discontent, in order to foment insurrection, and to organise the revolution which we look to put end to all social wrongs... Social justice realised through the free organisation of producers: war and militarism done away with forever; and complete freedom won, by the abolition of the State and its organs of destruction.” [“International Anarchist Manifesto on the War”, Anarchy! An Anthology of Emma Goldman’s Mother Earth, pp. 386–8]

Thus, the attraction of pacifism to anarchists is clear. Violence is authoritarian and coercive, and so its use does contradict anarchist principles. That is why anarchists would agree with Malatesta when he argues that “[w]e are on principle opposed to violence and for this reason wish that the social struggle should be conducted as humanely as possible.” [Malatesta, Op. Cit., p. 57] Most, if not all, anarchists who are not strict pacifists agree with pacifist-anarchists when they argue that violence can often be counterproductive, alienating people and giving the state an excuse to repress both the anarchist movement and popular movements for social change. All anarchists support non-violent direct action and civil disobedience, which often provide better roads to radical change.
So, to sum up, anarchists who are pure pacifists are rare. Most accept the use of violence as a necessary evil and advocate minimising its use. All agree that a revolution which institutionalises violence will just recreate the state in a new form. They argue, however, that it is not authoritarian to destroy authority or to use violence to resist violence. Therefore, although most anarchists are not pacifists, most reject violence except in self-defence and even then kept to the minimum."

All in all, a fairly reasonable opinion, but, I feel sort of like they sort of walled us out with Crimethinc's "diversty of tactics". The peace movement also seems to have sort of an aversion to Anarchists, probably because of such things, and, so, I'm not really sure where to go with this. I could read the google translate version of those French texts, I guess.

"At the Anarchists's Convention" by John Sayles, short story (fiction).