As a result of your questions about deprecated HTML, check out HTML -- i've added a section about deprecation.

The spec for HTML 4 is at http://www.w3.org/TR/html401/cover.html -- it is long, dry, boring, and ultimately, required reading if you're gonna be serious about this HTML thing. As you read it, the spec tells you what is deprecated. DON'T FEEL LIKE YOU NEED TO READ THIS NOW. But someday ... you should.

I actually find it fascinating. Someday, when you've become a total nerd, you will too!

OK, here's some easier sites:

http://www.w3schools.com/html/html_reference.asp
Tells you if an element has been deprecated. To see if the element's attributes or values have been deprecated, click on the element.

HTML 4.0 Deprecated Features
http://www.htmlhelp.com/reference/html40/deprecated.html
Short & sweet; notice that it's just the elements, NOT the attributes.

Translations from HTML to CSS
http://css.nu/articles/translate.html
This is a short and very concise listing of deprecated elements & attributes. Good for printing.

Here's the short list, without details:

DEPRECATED ELEMENTS

<applet>
<basefont>
<center>
<dir>
<font>
<isindex>
<menu>
<s>
<strike>
<u>

DEPRECATED ATTRIBUTES

align
alink
background
bgcolor
color
hspace
link
size
start
text
type
vlink
vspace