Just like calling and leaving a voicemail in the 90's was a great way to let your friends know you were thinking of them, social networking is now the norm to let your friends know you're creepily stalking them on the internet. And what better way to keep in touch with all of your pals then with a heaping of free Mac apps to constantly remind you that yes, you have friends out there that are worth tracking on a minute-by-minute basis. Or, maybe you're crazy obsessed with a pundit or famous YouTube star (My Drunk Kitchen, anyone?). Keep tabs on them with these free apps.

Tab for Google+

Who loves Google+? I love Google+. Is it true? I do, I do, I do. Yes, Google+ may only be used by three of your distant friends, but pretty soon it's going to catch on (C'mon, we just know it! Have some faith). And when it does, you'll be glad you had this notifier installed in your Menu Bar.

FlipToast

Stay updated with who's pregnant, who's married and who's having a bad day with FlipToast. This Facebook notifier lives up in the upper right-hand corner of your Mac's desktop and delivers up-to-the-minute information about everyone in your Facebook feed. And if you thought this was going to be a productivity killer, fear not! You can turn off the constant notifications updates and just use the desktop widget for posting photos or status updates.

Itsy

Looking for a new Twitter client? Itsy is adorable, and with that little smiley icon returning good tidings back to you, there's no reason not to include him as part of your brood of applications. Just like other desktop Twitter clients out there, Itsy lives in your menubar and pops up Growl notifications when something's going on.