The first one was a little bit about tricks with server side includes ("SSI's") and some of the crude things you can accomplish with them that, while falling short of a "real" programming language, are surprisingly powerful. The browser detection stuff is very old and yet still very pertinent today when folks want to determine on the server side which CSS style sheet to send the browser. The other HOWTO is some notes I'd had about messing with HTTP cookies.
So I performed some minor updates on these things and reposted them:
|The SSI Mini-Tutorial|
|The HTTP Cookie Mini-Tutorial|