MSDN Online

MSDN Online is the essential online resource for developers. You can easily access authoritative technical information, tools, expert guidance, and a community of developers ready to help solve your toughest challenges. Our site is updated frequently, so be sure to check the MSDN Online home page often.

New features include:

One customizable start page for all developers. Filter what you want, remove what you don't need. And, with an MSDN Online membership, we'll save your settings so you can access your customized page from any computer.
An improved search page that offers single-query search across almost all Microsoft developer sites, including Developer Support's Knowledge Base.
MSDN Online Voices is a new forum for Microsoft columnists expert in everything from C++ to XML.
Online Special Interest Groups (OSIGs), new MSDN Online technical support communities that connect developers to a network of peers and offer free downloads, technical support options, information on training and certification, events, links to additional resources, and more.
The Members Helping Members database includes more than 2000 MSDN Online member experts, searchable by specific technologies, so you can discuss common issues one-on-one.