I had the idea for several month, but there was some resistance to put much effort into it and the thought that actually doing photography as a business will kill the pleasure I have from doing it. So the my way to the business was slow, but yesterday I decided to get a tighter grip on the idea and start doing something in this direction.
My first step was to plan the whole thing, which lead me to creating a business plan. I searched the internet and found several resources to learn about the beast:

• Small Business Administration
• Small Business and Self-Employed One-Stop Resource (IRS) - added
• Business in DC (Washington DC government website) - added
• Dan Heller's Business Articles
• "Focus on Profit" Book and PhotoByte Software
• The Business of Photography - list of interesting books
• Business Articles on NYIP
• The Photographer's Guide to Marketing and Self-Promotion
• Sales and Marketing Articles
• Starting a Home Based Business - articles
• Sample Business Plan for Photography related business

Well, I am just on the second page of my business plan. I will post more of the ideas and thoughts on the topic. I better get back to writing the business plan ;)