Social networking is obviously very popular online today. Unlike general networking sites like MySpace and Facebook, there are a number of smaller networks that focus on professionals and businesses. These sites can be an excellent place to gain some exposure and to communicate with other entrepreneurs. Here is a quick look at 10 networking sites that should be considered by entrepreneurs.

LinkedIn has quickly become the leading social network that specializes in professionals. Many users have their resume posted on their profile and a growing number of employers are using LinkedIn as a recruiting tool. Entrepreneurs who are not looking for jobs can still use LinkedIn as a great resource for meeting other professionals and gaining some exposure for their own work.