Dashboard is an application geared towards collecting the information you want and need based on contextual clues. The project is based out of GNOME, and is hosted in the GNOME CVS repository. The Dashboard Homepage has more information about Dashboard, including screenshots, how to check it out from CVS, and other nifty things.
I've contributed some small changes to Dashboard, including an updated HTML chainer that allows better detection of RSS feeds. Additionally, I've written a frontend to Dashboard for irssi, and I'm working on a frontend for AIM.
Dashboard uses GTKHTML to display contextual clues, and as such, is currently only functional on Linux Based Platforms. Additionally, dependancies at this point are rather "guess and check" rather than anything solid. I'm going to ask around for a dependancy list, at which point I may try to build a gentoo ebuild for it.
And now, for gratitous linkage!