A curious LAC addition

Last week this banner appeared on the LAC front page. Normally these indicate a new event, resource, or some change in service.

This is different, and curious. It leads to a simple help file. It informs that social tagging (also known as "folksonomic tagging" or "social bookmarking") is a Web-based collaborative tool that enables visitors to:

• save favourite websites in a centralized and personalized online space;
• use their own terminology to catalogue and classify websites;
• discover and share relevant Web content with fellow social taggers.

However, despite the wording in the title there's nothing about specific use at LAC! What is it about this non-LAC facility at this time that makes it worthy of the front page? Perhaps some new intiative in the works? Please enlighten us LAC?