This mapping of social media tools is a work in progress. It is meant neither to be definitive nor exhaustive, but represents an attempt to classify the 650,000+ tools and applications existing today. Some tools could be classified more as services and involve a human intervention.
I have also made a distinction between those tools which are available in free/freemium version or whether they are only available for a fee (in red).
Finally, I have also identified those tools/sites that exist in French (where I am based), using the code "FR".
I will be glad to have your comments and thoughts. You can reach me at firstname.lastname@example.org or on Twitter @mdial.