make online images come alive for publishers and advertisers. (Acquired by Yahoo!)
Google+ platform websites integration using the Google+ platform tag.
A family of standard web feed formats used to publish frequently updated information like blog entries, news headlines, audio and video.
The OpenSSL Project is a collaborative effort to develop a robust, commercial-grade, full-featured, and Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols as well as a full-strength general purpose cryptography library.
Open graph description entity tag
Sites who has this tag are verfied by google to use WebMaster tools