Meta tags gives detail about the metadata of the HTML.It also about the character set used in HTML.

Yes, it does contain text and info about text. The meta tag contains the metadata about the text or characters.

Blog Tag Provider would be an online entity supplying you means to find tags in your blog(s). That said, if you tag your blog post (content), using real words or your own, a tag provider should bring you the experience of browsing by tag(s) or searching by tag(s). That, around the content of your blog. Example of a Blog Tag Provider on a Wordpress blog: http..www.examplewordpressblog.com/blog/?tag=Feature "Feature" is the TAG, on the web page, every post with that tag will be displayed. ___________ Complement - A provider is an entity who supply you a service of any kind. So, you can consume it or you can make your client consuming it. - A Wikipedia article names Tag say about it: A tag is a non-hierarchical keyword or term assigned to a piece of information (such as an internet bookmark, digital image, or computer file). This kind of metadata helps describe an item and allows it to be found again by browsing or searching. ... en.wikipedia.org/wiki/Tag_(metadata)

The BODY tag in HTML defines the portion of the HTML document in which the actual content of the page will be. For instance, images, text, links, Flash and everything else that renders when the browser loads the page is defined within the BODY tag.

Compare this to its sibling tag, HEAD, which contains metadata that describes the data within the BODY.

It is nothng but the information about information in database.... Is called metadata