Here are some quick links to finding out the popularity of your website (and your competitors) in Google!
Link Popularity: Not all search engines report link popularity data consistently enough to be included in a meaningful benchmark. However, knowing what these other engines are reporting can be very helpful.
Type in: link:www.yourwebsite.com.au in Google , Yahoo and MSN
Search Engine Saturation: Search Engine Saturation tells you how many pages you have indexed in the search engines. If your site is built correctly, everey single listing should count as a page plus all of your other pages. So if you have 100 pages each of these should be indexed.
Type in: site:www.yourwebsite.com.au in Google , Yahoo (special link) and MSN