This is kinda minor, but may come in handy in the future. Rollyo is a new search engine that lets you craft searches among just a select number of sites. Currently Google, Yahoo, and others let you search the entire web, or just a single webserver, so this acts as a sort of hybrid.
I've created a PVR search based around the major sites featuring info about PVR products, tweaks, and reviews and will be adding more sites to it. It could come in handy when you're stuck with a TiVo needing a phone line and wondering "how do I get around that again?"