Search Macro
If you download the latest version of the Massive Tool, it comes with a new macro I've recently developed: Search.RIM
This is how it works: highlight a word or phrase in your document, and then execute Search.RIM via the "Run Macro…" command on the Macros menu. You will be given a series of options (Amazon.com, Google, YouTube, etc.) to choose from. Once you've selected a search engine, that search wil be launched in your browser. This is useful if you like to find Wikipedia (or IMDb, etc.) links for things you cite in your posts, or want to find more information about the subject of your post.
I do that a lot, and I was tired of copying and pasting the key word or phrase from the Massive Tool into Firefox's search window. It just saves one step; but if you do that step a lot, it's a relief.