Review for SearchWith by zer0rez
Rated 5 out of 5 stars
This is one of the more useful addons that I have come across. Great for research completely streamlines the search process. Configuring new search services can be a bit daunting though.
Here is a video overview of the process:
http://www.YouTube.com/watch?v=HLa3mGCRqgs
To create your own collections, you must have a Mozilla Add-ons account.