Consolidation. Aggregation. These buzzwords could be the future of social networking sites.

Social networks aren’t new, but the burden of having to constantly manage more than one profile is. Think about it. How many people do you know with only one social network profile?

I’ve got three.

With different friends on Myspace and Facebook, and dozens of niche in-betweens, having one profile just doesn’t cut it anymore if you want to stay in touch.

For teenagers, it’s not a matter of choosing one over the other.

Teenager Asheem Badshah said it best in a recent CNET News article, “It’s a problem for teens--you’re like losing out on some of your friends if you choose just one (social network).”

“To have all your buddy lists in one place, that’s where this is going,” says Badshah.

Hmm, maybe he’s onto something. Remember how Trillian became the answer to managing multiple "IM" profiles?

Social network aggregators like OtherEgo, ProfileFly and MyLifeBrand (Alpha) have been popping up steadily over the past few months and make it possible for anyone to consolidate and manage their profiles from one space and in “real time” without having to log back in and out.

It’s a beautiful concept and raises several questions: How will marketers choose to reach these multi-profile consumers and use them to disseminate product information? What’s the benefit of spreading “word-of-mouth” buzz over multiple properties, versus putting dollars toward individual entities? Will this somehow help identify an entirely new group of online influencers? Will the next social network goliath be an aggregator? If so, how can your brand be a part of it?