For me, some of the best information available on the subject of internet marketing and writing good content (whether for use online or offline) comes from the folks at Copyblogger.
They put together a free course that draws from their best content over the last 6-7 years. This is seriously intelligent stuff. I highly recommend you head over to Copyblogger, scroll down the page a little and you’ll see the section on their free Internet Marketing Course. Over 70,000 people have signed up for it, including yours truly. I also listen to their podcast, which I find extremely insightful.
There you go. Nothing to sell here. Step away from this blog and head to Copyblogger.