Well, one thing I would like to do with this is interface with my Google Adsense account, in the hopes of creating a little extra revenue for myself (however little that revenue may be...)
I suppose this would also be a good place to get some free PR for the other sites I run:
searchspell - Created in 2000. Originally conceived as a smart spellchecker, it is now used most often as a typo generation tool for webmasters looking to get some additional search engine exposure.
joepetrow.com - My personal website
typofix - My attempt at searchspell inside-out, helpful people who misspell their search to find the info they were really looking for.
If I think of anything else, I'll let you know...