Online font tools

[CSE]

Comparing fonts: http://www.typechart.com/
Note even with a Mac things can look a little different to a Windows PC.
Change font using CCS, then get the code: http://csstypeset.com/index.htm
When coping a word doc into a HTML do you are sometime left with extras which you need to tidy up. This will do that for you:
http://wordoff.org/
A Lorem ipsum tool
http://lorem2.com/
Type tester (say what it does on the tin)
http://www.typetester.org/

Hope you find something useful