Effective tagging is the latest buzzword in the SEO realm. It is one of the Web 2.0 technology that we enthusiasts like the most. Why? This is because the technology offers more applications and remarkable visibility.

A tag, as Wikipedia puts it, is "a (relevant) keyword or term associated with or assigned to a piece of information, thus describing the item and enabling keyword-based classification of information."

Flickr.com has this to say: tags are like keyword or category labels, and they can help visitors find items which have something in common.

Search Engine Land further elucidates:
With tagging, items are cataloged and organized by keyword. Those keywords can then be displayed as navigation using what's called a "tag cloud." In a tag cloud, the font size of each keyword is proportionate to the number of times that keyword has been used as a tag. In other words, the more items a tag has been associated with, the larger the font size. Tag clouds were first popularized on Flickr, the photo sharing website. The social bookmarking site del.icio.us further popularized tag clouds.

Tagging isn't just a tool for usability; it's also a powerful weapon for web search engine optimization. That's quite true. The technology allows you to do so many things. All you have to do is explore to take advantage of its notable offers.