Based on what I have observed and learned, I think these are among the most valuable business websites for women, listed in alpha order:

1. BlogHer: The premier women’s blog platform is celebrating its sixth year this year–and it’s still going and growing.

2. Catalyst: This website by nonprofit group Catalyst hosts research about women in business and an insightful blog, Catalyzing.

3. Ellevate: A members-only international network of 20,000 inspired, empowered and connected women started by female staffers at Goldman Sachs. Nice offering of blog posts from members on work-life issues.

4. ForbesWoman: A wealth of multimedia material created and assembled to nourish all dimensions of a woman’s life in today’s business world.

5. LearnVest: Easy-to-understand financial advice, information and tools for women hoping to take control of their financial lives.

6. Penelope Trunk: The “brazen careerist” founded four startups. Her career advice runs in 200 newspapers. She lives on a farm in Wisconsin and homeschools her sons.

7. The Glass Hammer: An award-winning blog and online community created for women executives in finance, law, technology and big business. Contributors tend to be senior-level executives in Fortune 100 companies.

8. Ms. Magazine: The Web presence of feminist frontrunner Ms. magazine, the website boasts the most extensive coverage of U.S. and international women’s issues.

9. Women On Business: The goal of Women on Business is to expand the international network of businesswomen online by promoting conversation on common issues. It was founded by writer and consultant Susan Gunelius.

10. Women Success Coaching: A blog from success coach Bonnie Marcus, Women’s Success Coaching weighs in on the many building blocks of empowering women in business, from assertive communication to self-promotion to sensitivity training.

If you know of any other websites that you hold in highest regard, please identify them and share some information about them.