Forum Moderators: open
You could even try for the following query
"+www.foo.+com"
Since Google is considered to be the number one SE, it is better to consider your competitors backward links.
Also, it is very important to see the type of site that provides you a link, quality of the website that provides you the link, number of links already present on the page where your link has been placed, the PR of the page and so on...
Let me know if this helps!
With warm regards
Rajiv
The best way to stay ahead of the game is to ignore the competition and get on with doing your own thing. And that should be a continuously evolving process.
TJ