did not see this before, but google booksearch is integrated with google earth and will show location related books. nice!

http://www.aperturepluggedin.com/2007/08/02/ian-woods-gps2aperture/
don't know how I could live without it. by far the most useful aperture plugin so far. we use gps for all outdoor photoshoots for quite a while, now we can easily see where photos have been taken with a click. also recommended is houdahgeo - getting gps data into the raw files and on google earth tracks.

nice easter egg in google earth 4.2 - the google flight simulator. press cmd-opt-a (ctl-opt-a in win) and choose from a f16 fighter or a sr22 4seater propeller plane. a lot of fun.
a cheat sheet of the keyboard commands here

http://www.youswap.com
upload up to 1Gb file for free - download via unique url. useful and easy enough to get rid of those multimegabyte email enclosures.

http://www.who-s-web.com/
nice mashup of google maps for web 2.0 talents and events. more interesting the distribution of information - where are the early adopters of such services