Apologies for an other aide memoire but the following is a list of official websites used by Google in its social media metrics gathering.
If you sell in social media to your clients or simply want to enhance your organic search results then this is a great way of doing so. Its interesting that Disqus and Blogger/Typepad are in there which could prove to be a useful double hit if you’re using Disqus as a blog commenting system. Im not sure about the on-page SEO effectiveness of this as it seems Disqus uses some Ajax type thing but aas a social metrics gathering tool, maybe theres a benefit to it.
AllVoices Badoo Blogger Delicious Digg Diigo Disqus Echo Gigya Google+ Google Groups Hatena Livefyre Meetup Read It Later Reddit Screen Rant SodaHead TypePad VKontakte yaplog!