The most useful tool of 2006
A colleague Rob discovered Google Coop - those clever folks at Google now let you create your own private search engine, restricted to search your own set of sites.
We created a search engine for our project, and loaded it up with all the Javadocs, HowTos, reference documentation and examples from all of the open-source libraries we use on a daily basis. It’s become a real time-saver, as you have exactly the right versions of all your framework and tool docs in one handy place, linked to off our project wiki. Nice!