Free SEO Tools

what does facebook actually use to gain popularity and the revenues each month. I know that facebook doesn’t get all their income by the advertisers paying them to have their advertisements up.I want to know how does its gain popularity and what program or tool they use to gain all that money.Do they use SEO ?

I have a website that is made for some other country and stored in a sub folder under my root folder.
Can any body help me how can i do submit the website under google for the seo perpose.

main website: sgs-infotech.com (already submitted to google from google web master tools)
sub website: sgs-infotech.com/de/ ( Now i want this also to be submitted in google.)

Please help me how to achieve this as i dont know much about seo of a sub domain or whatever this is called.

Thanks in advance

I am new in SEO field. I have new website I want to start his seo. Please guide me how can follow the step of seo
Please tell me all step of SEO (basic + special)
Like whom many links needed in start
What is good and bad in off page?
Best tool that help in SEO
Focus point before start on page and off page
Technique that save from link spamming or site spamming
Please that very helpful question for all new comers in SEO+

Where can I find information about tools, gadgets, free hostingproviders, SEO, tutorials etc. etc.

Any suggestion ?

I have a website I would like to optimize. I am looking for 2 things
buy traffic to the website
Find the best tool in the market that will push my site to the top of the search engine
Thanks

any body help me why this tool is not working this is only my system or all are getting this problem.please tell me best keywords suggestion tool and keyword count information tool
can any body suggest me just like inventory overture tool i need good keyword count tool please

However I don’t know where to set this up as:
-I brought my domain through godaddy.com AND
-My site is hosted as an addon domain through another hosting provider
Do I set up the 301 direct from godaddy.com OR the control panel of the hosting provider OR somewhere else?

I have heard that blogs are a good tool in search engine optimization and can help in improving the page rank (PR). Can someone tell me how?

how can i make seo tool bare offer to my vistiors some usefull tool , google pagerank and alexa rank , backlinks ,….etc ?