Twitter, LinkedIn, Instagram, Tumblr, Vimeo, Wordpress, Pinterest, StumbleUpon, Weebly, etc.
I have my list of Top Social Media Sites. You can ask me for the list in the inbox.
You can link these accounts to key Hubs such as IFTTT, Onlywire, SocialAdr, WeOnTech, etc..to make posts from these accounts super-powerful networks from one place.
Check Gig Extras for getting your accounts Humanized/Customized/Personalized which enhances the life span of your accounts and avoids google ban.
Humanization is nothing but setting up social media page for your website or blog.
Following this strategy you should see a real boost in your SEO / SEM efforts and experience a true expansion of your internet network. Great for all types of websites and businesses.
Social Accounts for your marketing.