Web activity tracking - http://fnuked.de/usaproxy/

Computer activity logging - http://www.slifelabs.com/development

Mobile phone call and SMS logs - http://tinyhack.com/freewarelist/s603rd/2007/03/02/logexport/

Tools
Spindex - http://fuse.microsoft.com/projects-spindex.html

(If you would like to add other resources to this list please email them to lkelly@computing.dcu.ie)