If you have ever needed a good all-round resource URL to keep track of freeware for your Mac, one source I would recommend is: http://www.freemacware.com/
There are literally hours worth of amazing programs in these categories:

Audio Freeware
Blogging Freeware
Business Freeware
Communication Freeware
Cool Mac Freeware
Educational Freeware
Email Freeware
Financial Freeware
Free Mac Widgets
Games for Mac
Graphics Freeware
Health Freeware
Home Management Freeware
Icon Creation Freeware
Internet Freeware
iPhone [...]