Tags Harold A. Driscoll Harold lists all the elements and the attributes that can be associated with it. Special Characters in HTML Lists all special tags. Gives a couple of examples with good ways to put these to good use. Tags Explainations of basic tags with examples. Web Communications Great list of tags and descriptions.
Every tag is listed here.
The Compendium of HTML Elements Excellent resource for tag explanations and demonstrations. Very good explanations of browser specific tags. HTML Crash Course for Educators Text tags Special Tricks and explanations. Basic Tables Tag descriptions and basic table creation information. A bunch of short tips in many categories from text to meta tags.