MySpace is still the whale in the social-networking pond, but some smaller sites are undergoing some encouraging growth.

Hitwise's Lee Ann Prescott tracked the traffic share for the top 20 social networking sites in February and found that MySpace accounted for 80 percent of the traffic to the sites tracked, WebProNews reports. And while MySpace traffic increased 10 percent in February from January, competitors BuzzNet and iMeem more than doubled their traffic in the same period.

Buzznet traffic increased 148.4 percent, while iMeem's rose 145.7 percent. However, those rates are from a low base; those sites accounted for less than 1 percent of the traffic among the Top 20 social networking sites.

That group as a whole increased it traffic 11.5 percent from January to February.