I want to spy on my competitor's backlinks and do some reverse-engineering. I also want to see how many of my own backlinks Google "Really" sees for my sites. Google's "link:" command only shows a small amount of backlinks, so Google does not let you know all of the backlinks that it has found (It's probably an algorithm thing). Forget about Yahoo Site Explorer! That only shows me how many links Yahoo has on me. Are there any sites or tools that will let me see ALL the backlinks that Google knows about, or at least more than the "link:" command does? Do you think it's correct or a true statement that if you want to rank for Google, then one of the things that matters is how many backlinks that google indexes?