I ran across Twubble today. If you like/can’t live without Twitter this is a great tool/website to find your Twitter friends’ friends. It’s written by Bob Lee that works at Google.
If you use Twitter, Twubble can look at your existing friends’ friends and recommend new people for you to follow. It’s a stupid simple idea, but I think the execution and fun factor have won people over.
I wrote Twubble in a couple nights of hacking in bed after the kid went to sleep. I used the latest Google Web Toolkit milestone which supports Java 5 (flawlessly from my experience). I was writing Javascript code (server and client side) for years before I ever got into Java, but I have to say, you’d be crazy to write AJAX apps any other way than GWT nowadays.
Try it out. It’s amazing how many friends you can find by having this tool examining your friends.