when i search for gobossy in Google, my site doesn't show up anymore as it used to be couple days ago. It was number 1 and the url was www.gobossy.com Now the main domain doesn show up, only the terms are, or rss feeds. But when i type this inanchor:"play flash games online" my site shows up on the second page as www.gobossy.com The reason why Google kicked my site out, because 2 days ago, i applied for a AdSense account. I believe the actual person took a look at my site and found out that i have an adult content. Do you think this might be the reason why my site is not listed in SERPs under gobossysearch term?
You were not penalized or banned. Sites fluctuate all the time this does not mean they are banned. A banned site does not show up in google as indexed even the home page. You should read: http://www.1stsearchenginerankings.com/2006/12/20/how-to-conquer-google-for-beginners-part-1/
Basically yes. You just got to work on methods that work. Forget the recip links, spamming(if you do forget it. If not forget I said it and move on to the next step), link farms, directories etc. Some of these have value and some don't. The ones that do are greatly dis-valued and keep getting dis-valued every update so every update you will lose rankings because of it. Build backlinks from authority/quality sites which aren't going anywhere. Sites which are related and have good value(backlinks). Create a linkbait which will cause webmasters to WANT to link to you. Linkbait links are very powerful and are priceless. Write information articles on related subjects and publish them on your site. Post on forums related to your subject and use your signature to pull users who may link to you. Forum sigs don't help google rankings that much but they can bring people. Again if you are indexed in Google you can't be banned.