Is there a good tool out there to see what a site ranks for, or is getting good google / SE traffic from?
Don't know of a free tool.... I have a great tool by caphyon... $200 for the program but it comes in handy.
check this website http://www.linkvendor.com/seo-tools/serps-position.html or use the keyword tools from digitalpoint http://www.digitalpoint.com/tools/keywords/
You can see it on your site stat. Do you have an account to statcounter or google analytics? If you don't have yet, create your account there to see what does you visitor type on the search engine.
i m using this tool http://www.cleverstat.com/google-monitor-query.htm for google ranking.nice tool but u have to download it.it will give exact results for your keywords.let me know if u find any difficulties.i m using this tool since one month.