General websites:

GroupCalendar
Exchange GroupCalendar
Microsoft

Online rated software download websites:

Bob's software picks	Free software download for Windows. Includes audio programs, utilities, Internet, desktop, development software, and more.
4 Software downloads
Fresh Share
Download Tipp
Try Share Ware
Trial Me
Soft F5
SoftJamboree
Software downloads 4u
Blue Chillies
It Shareware
Software Busters
Top Shareware
Sofotex
Cuteapps.com	Freeware, shareware and quality commercial software downloads
Brother Soft

Filesland.com