Thank you very much, both for your feedback and praise!

Your idea is very very good, and there are many things we can do, especially with document clustering (grouping similar documents), automatically generated keyword clouds, etc etc. We are trying to get the service to a good, stable level for now, and then we'll devote more time to playing with new ideas.

One such idea we're considering is have the search interface be a filter, where the results are continuously decreasing, in real time, as you type more and more keywords.

We already have Twitter integration (as in, posting things to Twitter when you historify them). We also want to add Facebook integration, but its priority is a bit lower right now.

Thanks again, we add all ideas to our wishlist and are very happy to implement most of them (it just might take some time)!