How do I track a package sent from China to the US with a tracking number I don't know what site to go to I purchased something from somebody from China using Ebay?

Its probably with FedEx, USPS (us postal service), DHL or UPS.

I think maybe is EMS, cause china guy like to use EMS send goods abroad, it's cheap,quick, save. held by china post. Btw i am a local Chinese freelancer, i can do purchase for foreigners with Chinese goods to help their small business,like brand-copy cellphones,hair strighters,bags and shoes, DVDs,cloths,watches&jewels,etc from taobao.com or china wholesale market or direct from factories.Same goods the same as them on eBay but more cheaper. And i also can do rewarding task of china affair for people who can not come to china themselves or done your work online.

UH idont know... KITTYS OMG :3 =^-^= lol kitties rock ur socks :3