via Wikia blog
One of our core values at Wikia Search is Community. We want everyone to be able to participate in the Wikia Search project. That’s why we are proud to introduce Wikia Evolution, our new Firefox toolbar. You can download it here, or via Mozilla’s Firefox Add-On Library.
The mission of Wikia Evolution: To empower users to interact with search.
We want to make it dead-simple for you to add URLs into our index under appropriate keywords. Already, we’re the cutting edge when it comes to incorporating user feedback into our search results, so much so that Google is experimenting with eerily similar features. Wikia Evolution pushes the envelope even further. It allows you to quickly and easily add the web page you are on into Wikia Search, directly from your browser, for whatever keyword is appropriate. Instant indexing! Then, you can modify the search result to make it really killer, all without leaving the page you’re on.
Letting everyone modify search results pages is of fundamental importance — but you can’t on either Google or Yahoo. We can’t change that, sadly, but Wikia Evolution does the next best thing. Using Wikia Evolution, you can add and rate URLs directly from Google or Yahoo, and those contributions will be immediately incorporated into Wikia Search.