Ok, I'll try hopefully with some success (which might not be the case).
I wanna say information describes a change in some physical quantity of each system in a set of interacting systems (or elements); that is, for there to be information in a set of interacting systems the change that takes place in the set as a whole or in its individual systems must, directly or indirectly, affect the amount of change the interacting systems will experience in some future time (a feedback loop).
The change in a system
(which could be represented by a change in the velocity, position, or mass of its constituents, or by a change in the distance between its constituents, etc
) which occurs when energy is applied into such system
(as the result of an interaction
) is information only if when the system decays or loses energy
(that is, when the system emits some kind of signal
) such emitted energy changes the configuration of its interacting partners in such a way that a future change in the configuration, or state, of the system will depend on the amount of change it experiences presently*
(keep in mind that the system is not acting on itself directly but indirectly - you could say the system acts on itself through an interaction, and the change it causes on itself through such interaction "is" information; and the same is true for each element of the set
).
* I understand that a system in a given configuration, or state, requires energy to change such configuration and that with time, and given that no energy is being transferred into the system, the configuration of the system will decay to some ground state. It is also in my understanding that it is possible that a system may have different configurations that satisfy a given energy level such that the input or loss of a certain amount of energy into or from the system may lead to different changes in configuration (relative to a given one) which are all equivalent in the amount of energy they contain. The fact a system possesses energy-equivalent states I think implies that in "cycles" of energy transfer an interacting set will evolve in contrast to maintain a constant state since the probability of a system reaching a given energy-equivalent state is the same for all energy-equivalent states.
So, a concise definition would be, roughly, information is change in a system which amount (the amount of change) is bounded (dependent) to some extent by the effect of the system on its interacting partners.
Edit: Information is a limit to the amount of change a system can undergo which arises due to the system being part of an interaction; and because it is an interaction, such limit depends to some extent on the system itself.