Today I found some new information sources to read courtesy of our friends over at Microsoft:

Windows Live Hotmail Technical Support Blog – The official technical support blog for Windows Live Hotmail and the Live Mail Client.
Your mail is here, come and get it!
Web mail musings from the Windows Live Hotmail team
Windows Live Mail
It’s for more than just email

I’m sure there are some hidden treasures in these… Once I have more time to digest the contents I’ll share what I find.

Also don’t forget to add these to the list of necessary reads:

Official Gmail Blog
Yahoo! Mail Blog

Do you have any other ISP blogs to share, Leave us a a comment or email us at contact.