1)   Messenger Icons for Vista 2008.1
The Vista Messenger icon set is a excellent set of icons that will breathe new life into your communications with friends across the world! The set contains a number of icons for email and instant-messaging. Vista-ready with up to 256x256 sizes!

 2)   Online Icon Set 2008.1
The Aha-Soft Online icon set is an excellent set of icons that will help you change the way your site looks. Crystal-crisp and utterly attractive, these icons will always keep your site fresh and elegant. Available in a variety of resolutions.