piatkow - 11:27 am on Dec 1, 2010 (gmt 0)
You aren't the only one micklearn.
My main site is for a print magazine - the bulk of our ecommerce is taking copy and payment from existing advertisers so my main source of revenue earning traffic is the url printed on page 1.
The info sections of the site (nich music gig listings) get a lot of traffic from Google and pick up the very occasional subscription and the even more occasional Adsense click which doesn't cover hosting.
Losing Google would hurt my pride as webmaster as it would show very obviously in the stats but it would hardly affect the underlying business.