There are many commercial software tools on the market, but one is simply the best... And - yes, the best of all - it is free! So, my favorite SEO Tool is WebCEO – not only because the free version of this tool is better than the commercial versions of other tools, but mainly – because this gizmo always works well.

WebCEO is extremely powerful product. Currently the program comes with 12 search engine optimisation and popularization features for everyday use:

Find your niche and optimize your site:

•     1: Research keyword niches

•     2: Get optimization advice for your site

•     3: Edit your Web pages for search engines

Promote your website on the Web:

•     4: Submit your site to search engines

•     5: Analyze your link popularity

•     6: Find link exchange partners

•     7: Manage paid search campaigns

Analyze your rankings and traffic:

•    8: Monitor search engine rankings

•    9: Monitor traffic with HitLens

Maintain your site:

•     10: Control the quality of your site

•     11: Upload files using FTP

•     12: Monitor your site

There are several other tools available to you on the Internet to assist you in determining where you rank for particular phrases, what your domain(s) Google PageRank is, and how many incoming links you have.

Googlisms

There are several ways to find out if your site has been indexed by Google. The first is to search using allinurl:wonderwebware.com . You can also find out how many backlinks you have by searching link:www.wonderwebware.com. To search your site, you can limit a google site to your domain by using site:wonderwebware.com 

PageRank Report

You can find out your Google pagerank by installing the Google toolbar for Internet Explorer, or you can enter up to 10 web sites to retrieve Google PageRank 

Total Pages Indexed Report

For google, you can search "site:wonderwebware.com inurl:wonderwebware.com" to see the total number of pages indexed on this site by Google.

Link Popularity Report

You can find many tools to check your backlink situation in different search engines. Be careful to not step in the following traps: 1. Don't take the amount of backlinks a domain has as the only indicator for good ranking. Like often said above there are many more parameters. 2. For some reason the results in different backlink-check tools may vary. So please don't believe in the results the first tool gives you.
A webmaster should keep in mind that the results of any Link Popularity Report are just giving a indication. They give you a clue how your website competes.
Try one of the following:
Link Popularity Check - www.marketleap.com 
Link Popularity Check - www.linkpopularitycheck.com 
Link Popularity Check - www.checkyourlinkpopularity.com 
Link Popularity Check - www.linkpopularity.com 
Link Popularity Check - www.mediacode.de 
Link Popularity Check - webmaster Toolkit