CSS imagemaps with pop-up tooltips

http://csshowto.com/effects/css-image-maps-with-pop-up-tool-tips/

here's more CSS tooltips on an imagemap using Prototype Javascript framework
http://css-tricks.com/image-map-with-prototype-tooltips/

Backup your database to an XML file using PHP

http://davidwalsh.name/backup-database-xml-php

Creating logon scripts with KiXtart

http://articles.techrepublic.com.com/5100-10878_11-5031998.html - PART 1
http://articles.techrepublic.com.com/5100-10878_11-5033497.html - PART 2
http://articles.techrepublic.com.com/5100-10878_11-5033498.html - PART 3
http://articles.techrepublic.com.com/5100-10878_11-5033499.html - PART 4

Possible Hamachi replacement ?

I haven't test this yet. It's called "Gamer's Internet Tunnel"
http://www.morpheussoftware.net/git/

Write flash games using only free tools!!

http://www.junoplay.com/articles/writing-flash-games-using-only-free-tools