Increased traffic? More visitors? More downloads? Who doesn’t want those and the other perks that come along with blog promotion? Whether you want to promote medical scrubs or kids clothes, or your very own Etsy store (a great source for everything from dog collars to laptop decals to tungsten rings, then here are some great online communities that are worth checking out:

• Blog Frog
• Networked Blogs
• Ning

What are some decent blogging communities that you know of?