Learn about Your Small Business Tax Obligations From the Pros: the IRS
Since this is tax season, you might be interested in this resource I just found on the website of the Internal Revenue Service (aka the "Tax Man"):
Welcome to the Small Business/Self-Employed Virtual Small Business Tax
Workshop. This extensive workshop is designed to help new and existing
small business owners understand and meet their federal tax
The workshops consist of videos that teach you almost everything you need to know about federal taxes and your small business.