The most thorough web sites for Windows ME (Millennium Edition) & Windows 98 information have been around a while and they are all going strong.

Web Sites

Microsoft Windows ME
The official Windows ME web site is packed with a ton of information straight from Microsoft.

Microsoft Windows 98
The official Windows 98 web site.

ZD Net
ZD Net and its many sections seem to release news and articles about Windows 98 every hour.

CNET & News.com
The main CNET site and News.com have been two great sources for extensive Windows 98 coverage since its early betas.

Windows Magazine
The huge Windows Magazine tip site has over 2,000 tips!

WinFiles.com (formerly Windows95.com)
Hundreds of catagorized tips are organized at WinFiles.com.

More

Check out more resources for Windows info.