I’ve been trying out Bing as my default search engine for last few months and the results are definitely at par with that of Google for most of the consumer categories. But sometimes you just need a quick toggle to see what Google would return for your query. So here is a small bookmarklet that I wrote that toggles from Bing to Google and vice versa.
Drag this to you favourites bar: Bing/Google Toogle
Note: Its tested on IE8 only. A few tweaks might be required for Firefox.