Browser History & Bookmarking

I’ve been wanting to implement a solution for this problem:
When i’m working on a problem, naturally i can go through gazillion of sites, when the problem is solved, there will be no record of traceback for references for that problem.
namely, if i ever want to solve it again, or re-check it, i will have to do the browser history traceback dance, will not find what i want, and do the research all over again from scratch.

I needed either of these two solutions.

one: add the option to group history entries by a time radius, so that, the group of urls visited '”this afternoon” would be grouped together, maybe draggable to somewhere so i could save it in an email or text under “problem XYZ”.

two: hook something ALOT more powerful than browser history between my browser and sites i visit. something like a subconscious del.icio.us.

Well of the two options i found several solutions to the latter:

1. Google Web History
2. hooeey

Have fun!