Only #3 or 4? Hmm, I need to do some more work on promotion and getting backlinks.
But more seriously, I check on the site's position with different search terms every now and then. It fluctuates some, but we're usually pretty high up in a lot of the more interesting searches. I have a great big sitemap that Google uses to crawl the site on a regular basis, so we get a lot of pages in their index.