Online Advertising

eDeltaC - Internet Marketing company specializing in Online Public Relations (PR) , Direct Marketing (DM) and Advertising.
http://www.edeltac.com/
SiteSell.com - Offers a set of books teaching how to improve online sales.
http://www.sitesell.com/
Storyline Studios - Specializes in web design, online advertising, and customer relationship management for small business. Includes a list of services and portfolio. Located in the Netherlands.
http://www.storylinestudios.nl/
VideosOnWeb.com - Playerless streaming video for Internet-based advertising.
http://www.videosonweb.com/
The Viral Factory - Includes information about the agency, staff, clients and awards including some previous viral marketing campaigns and contact details.
http://www.theviralfactory.com/