Sync your Mac Address Book with your Google or Yahoo! e‑mail account to make it available to Facebook, Twitter, LinkedIn, and other social‑media sites.

Many Mac users already make their contacts available everywhere by synchronizing between laptops, desktops, and smart phones, either using MobileMe or third-party utilities. But in Leopard and Snow Leopard (Mac OS X versions 10.5 and 10.6), there’s another very powerful option—synchronize your Mac Address Book with Google (Gmail) and Yahoo! e‑mail accounts. The advantage: these two services have become nearly universal resources for sharing your contact list with social‑media sites.

Here’s how it works …[READ MORE]