I have been training people for the last 10 years and enjoy taking people to the next level of learning. There are 50 Tips for you to try, in the full Version there are over 400 Tips. (You'll need Adobe Acrobat Reader to view this Document.)
Symtometer
Type Inspector
CrimeBooks.Net
Chalksoft
OLSOFT
Cool Audio Ltd.
Daniel Riera
Recoveronix Ltd.
FDRLab, Inc.
uTIPu, Inc.
Silvio Kuczynski
Transfer Outlook to Gmail
Henry Parks
MechCAD Software