Like all social networks, the professional-focused LinkedIn is looking for a way to turn its growing membership into advertising dollars. Now, LinkedIn may be aided by the fact that its members have some pretty big bank accounts, according to a new study.

About 28 percent of LinkedIn members are executives with an average income of $104,000, according to a study from Anderson Analytics. Another 30 percent of users made an average of $93,000. These members, called "savvy networkers" by the study, often identified themselves as consultants. Meanwhile, two-thirds of all LinkedIn users are decision makers or have purchase power within their companies.

High-earning members were also the most connected. According to the study, users who made between $200,000 and $350,000 were seven times more likely to have more than 150 connections on LinkedIn.

LinkedIn launched its own ad network in September to connect marketers to its 27 million active users and raised $22.7 million in funding just last month.