The red shirt or the blue one? If you can't shop without a second opinion, check out BuyBooBuy on Facebook or ProductPulse on MySpace. Post a photo of the item you like, and other users will give it a thumbs-up or -down. Since both of these applications launched in the past few months, neither has many subscribers yet, but we're pretty sure they'll catch on.
Anita Hamilton
10 Social Networking Apps
From web applications that enable you to see hundreds of your friends at once, to a way to communicate simultaneously with all your contacts, there are dozens of ways you can scream into cyberspace: "Here I am." These are 10 of the best.