Net Net: It's all about marketing; Use the Internet and its tools to brand yourself and to...

Brokers can learn a thing or two from Tax Mama -- a.k.a. Eva Rosenberg. As a Treasury-approved Enrolled Agent who represents taxpayers before the IRS, Rosenberg knows the tax code. But forget taxes; Rosenberg is an expert in marketing expertise using technology.

In 1999, Rosenberg created www.taxmama.com, a web site to help individuals with their tax problems. It was an outgrowth of her tax consulting business, based in Encino, Calif., and a quarterly newsletter she prepared for clients and prospects.

"It took me about a week to write the newsletter and forma