Hi, I am new to SEO and i want to buy backlink package for my site since i am a newby who don't know much about link building. but i want know what do i look for from backlink providing company to know that their service is of tough quality?
If you want link building sites, you can start from here. http://www.earnersblog.com/social-bookmarking-list/
Announcing it aside, the suggestion that chinasa gave is a pretty good one! Now this is just my own personal experience but... if you build your own links "by hand" so to speak, and only build a few per day. Maybe starting off at 3 links a day, then the next week bump it up to 4 a day, the next week 5 or 6 per day etc... and... now this is the important part, put those links on sites that are both relevant to your own and have a high PR, then you will find your page shoot up the ranks pretty darn quick! If you can stick with sites that are just say pr 4 and above for the first few weeks you'll notice a huge jump in rank, especially if you pink those links. Some might disagree with me based on "hearsay" from grabage they've read somewhere else from someone who probably didn't even write that ebook in the first place... all im sayin is TRY IT! and you'll see for yourself. It works.
Reciprocal is good way to find best sites, in 3 way most link builder have seo sites whic are not much helps you. You have to find quality sites according to your theme