Bize.com a Business Social Networking site based on the open-source social networking software Dolphin offers FREE social media optimization and SEO benefits:

• Add your business website and get a free direct link  to increase link popularity.
• Meet business owners, professional singles and grow your network.
• Login with your Facebook account.
• Upload Videos, Music, Files (almost anything) and record video messages online!
• SEF (Search Engine Friendly URL)  Profile – view sample profile