Hello there, here are some links you might find useful.

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