Affordable, effective Web Design. www.saucedout.com.au
Excellent research-based advice on website usability. www.useit.com
Great daily copywriting tips. www.copyblogger.com
Countless, fantastic articles on all aspects of micro business (I am slightly bias, I am one of their featured contributors!) www.flyingsolo.com.au
Powerful and easy-to-use keyword research tool, including lessons on search engine optimisation. www.marketsamurai.com