Scripts for counters, guestbooks, forums, etc.  Note that CGI scripts require access to cgi/bin on your server.

Accutemp - simple to use extremely fast script whihc displays the actual air temperature for any US city or town.  Requires SSI.

CGI-extremes.com - an excellent collection of over 1900 scripts for all users.

Dynamic Drive - a great collection of scripts and components to enhance your site.  Java and DHTML technology.  Some really good scripts and ideas to be found here!

FreeCode -  offers  hundred's of free scripts - be sure to check here!

Free-scripts.net - a nice collection of scripts of all types.

JavaCity 2000 - Good variety of scripts including games. See game page at www.acmanti.com !

JavaFile.com - another great source of scripts.  Includes many on-line game scripts.  We use them on our partner site!

The JavaScript Source - more good scripts- the source of the Tic Tac Toe game on our partner site, www.acmanti.com !

Matt's script archive - one of the better know collections of scripts.  I find this one of the best!

Megacgi.com - offers archive of perl cgi scripts including personals, stats, search, mailer, and more.

A web directory with millions of links, scripts, and ideas ready and free for you: ODP++  

PageRipper - a script which grabs HTML from other sites and places it on yours with the help of SSI. Currently on use at hundreds of sites.  Sounds interesting!

Perlcoders - one of the biggest and best CGI supersites for site automation and traffic generation tools on the net.  This is the home of AVSMaker and many other great scripts.  Be sure to check this out!!