You will have to listen to at least the beginning of the audio to get a quick lesson in exactly HOW effective advertising is. Be sitting down.
Something as simple as your email address can be a powerful branding tool.
Here are the links I mentioned:
All of the above links add extreme value to the Internet.
The takeaway here is that branding works. Logos, graphics, colors, fonts, favicons, Gravatars, Twitter, Facebook all conspire to brand your business. The more attention you pay, the more powerful your branding.
Enjoy your weekend.