Right around the time your grandmother tweeted that you needed to check out her Facebook page, you realized that social networking had become mainstream. Check out these five new Sears Imported Autos recommended social networks you should know about before Granny beats you to them.

Pinterest. Pinterest describes itself as a virtual pin board (it's a pun, get it?) where users post pictures of just about anything. Instead of putting a cork bulletin board next to the telephone—telephones are those ancient devices people used before cell phones and which are still sometimes found in the kitchen of people older than 40—you place digital pictures, reminders, and phone numbers online. Pinterest is one of the fastest growing social networking sites ever.

Chime.in. Much of what Chime.in has to offer has already been done. It's basically a combination of well-established social networking sites such as Twitter and Reddit with blogging capabilities. So what makes Chime.in different? You get to control the advertising on your page; furthermore, with Chime.in, you get a share of ad revenue. Chime creator and entrepeneur Bill Gross believes that using an economic incentive to drive users to the site will help overcome its late arrival onto the scene of social networking.

Hunch. Although you control who you follow and who follows you much in the same way as Facebook, Hunch recommends people to follow based on similar interests and tastes. Hunch does more, however, than just recommend friends. It recommends movies, restaurants, and more based on a series of questions and recommendations from users. Be careful when you sign up or you'll find yourself answering Hunch's fun interest questions all day.

Daily Mile. Niche sites are gaining popularity in social networking, and one of the more popular sites among runners is the Daily Mile. The Daily Mile site, which can be linked to Facebook and Twitter, allows users to share their daily workouts and allows other "friends" to comment on those workouts. Think of it as Facebook for runners and triathletes. In addition to posting workouts, users can create their own profile, upload pictures, and give and accept challenges. Other social networking sites with an emphasis on exercise include MapMyRun, Livestrong, and Athlinks.com.

Soundcloud. Remember when MySpace was cool? Seems odd, doesn't it? With the waning popularity of MySpace, other sites needed to fill the musical niche that it left. SoundCloud provides a music-based community that allows musicians, music labels, and promoters to easily promote and share their music. Other niche music sites include ReverbNation, PureVolume, and Last.fm.