Internet Marketing:

Free Website Builder by Ewen Chia

Internet Marketing Centre – Free marketing tips

Site Build It! by Ken Evoy

Definitive Guide to Google AdWords by Perry Marshall – Free 5-day email course

Google AdWords – A Brave New World by Andrew Goodman – Free 40-pages ebook

Search Engine Optimization Made Easy by Brad Callen – Free 90-pages ebook

SEO Elite by Brad Callen

Keyword Elite 2.0 by Brad Callen

Blogging to the Bank 3.0 Rob Benwell

Google Ambush by Andrew X and Steven Lee Jones

Niche Content Stores - Free content for your website and blogs 

Get More Buyers by Michael Rasmussen

AdWordAccelerator  

Email Marketing:

AutoResponder Plus 

GetResponse

AWeber

25 Essentials for Exceptional Email Campaigns by Lyris – Free 6-pages report

Design and Photography:

Learn Photoshop Now by David Peters

Learn Elements Now by David Peters

Turn Your Photos into Cash by Dan Fieldman