differerence in backlinks
 

I think the better results are visible with opensiteexplorer.org, which other tool you are using to check the backlinks??

opensiteexplorer.org has the best result so far, much better than any other tool available.

Its basically two types of links do follow and no-follow.

Few sites do not show the nofollow sites back links, so might that is the reason.

Some sites shows you both do-follow and no-follow links but some website will show only the do-follow links.....

Google is a little more picky about what it considers to be a backlink. Not all of your links will be counted by Google. This is because they are not as concerned about the number of backlinks as they are the quality of the backlinks.

Try and use Google webmasters tool, it is more accurate then those two.

Their are two types of back links one dofollow links and another is no follow links. Do follow links are always beneficial to sites.

Every tool will show you different results so don't worry about it.Just keep focus on quality link building and build some more quality backlinks.You can use backlinkwatch.com too

Nice post thanks for sharing.

SEO SpyGlass is an application for your desktop which is capable of browsing through a large database comprised of search engines in order to acquire the list of links to a specific website.

in my knowledge you must use Google webmaster tool for back links checking ..