Google web master tool is a most favorite tools of SEO. Just sign up an account and enter the helping world of googel webmaster.
Sure, google has done a good job with webmaster tools. I can finally define whether I like www.domain.tld or domain.tld has my primary URL, I also get an option of choosing my target geography (if I want to) and I am also given an option of increasing my crawl rate if google see too many pages.