Rollyo: Roll your own search engine
Rollyo is still in beta but has now been released to the general public. The idea behind it is that you can select a number of sites that you can search at once. This way, you can create customized topical searches that are of interest to you. Fellow 9ruler, Erik of Kartooner, has set up a searchroll to search all the 9rules sites that cover web development.
Some quibbles for me include the fact that there doesn't seem to be a default search page for a specific searchroll. When you're on the site, every link to a searchroll opens up in a sqaure block in the top left. I also feel like the focus on the High Rollers makes my own seachroll feel less important. But on the flip side, if I was in their shoes, I'd have probably done the same thing.
I'd also agree with BrainFuel... they've got a really nice logo. With the exception that it makes me hungry for a cinnamon roll. ;)