I wholeheartedly agree with Chris description of Michael. I've been a fan of his "craftsmanship" for a long time.
Yesterday, Fagan released yet another new and useful tool for web searchers.
This time around it's a new set of bookmarklets, what he calls "Switch Bookmarklets" that allow you to, "quickly switch from search results from one tool to those from another." Switch Bookmarklets are available for many general and specialized search engines.
For example, run a search on Google and by simply clicking the bookmarklet check the results for the same query at Teoma. Run a search at Daypop and quickly review the results at Technorati. Hundreds of combinations are possible.