Anyone know of a good app along these lines (not necessarily browser based) for working with timelines?

I've been reading a lot, opening a lot of tabs, and taking a lot of notes lately. I'm finding that organizing things by date/time works really well for making sense of piles of stuff.

I'd like to be able to throw things onto a timeline and then later read back the timeline in chronological order to get a sense of what kinds of trends are at work.

Any great recommendations will be much appreciated!