Webpage was not indexed by google, why?

Hi guys, I have a question. My website is 2 years old. And it has been changed the url one time for better serp. But when I change the url with keyword in it. I found till now it has not been indexed by google for months. I don't know why, and I keep building profile links, exchange links, social bookmark, till now, still unindexed. What should I do, is there any way that I can do to let google index? please help.

I have the same problem but mine is only about 3 months old. #60 on yahoo and altavista but no one knows I'm alive on Big G. Know anything about Big G penalties? At least 90% of my stuff was written by me.

How about submitting your link to Google.

are you using a sitemap? What about G webmastertools?

When you change your url you could lose all your SEO work. I take it you did it the wrong way. The proper way to update is to redirect is using a "301 redirect" in your .htaccess file to your new URL. You may need to start doing your link building and seo over again but your ranking will come back if you apply the same methods you used before. Make sure you update your google webmaster tools, google site submission and any other tools about your new URL.