dropbox.com – Create a folder on your work computer, home computer, and smartphone which is accessible online all the time. The folder will sync between all three, and be backed up online automatically. Genius.
pipl.com – People search on steroids.
guerrillamail.com – Gives you a temporary 15 minute email. Want to sign up for something without getting spam in your permanent email account? Go Guerilla.
searchallcraigs.com – Search engine that will search all of Craigslist for you.
fonolo.com – Don’t wait on the phone for someone in customer service to pick up. Hang up, and let fonolo call you when they’re ready.
mint.com – Track all your financials in one place. This site has its own security, which is placed over top of your own bank’s security network. Very neat.