Build backlinks is very important,even though Google says the algorithm does not require a backlink.
Backlinks are very important function, increased use of Domain Authority (DA) website or your blog. If google update panda and penguins algorithm, SERP of your url's will be lost and impact decreasing visitors your blog or website, but with the number of backlinks to your website, at least from the SERP lost your url's will quickly return.
But you know that, every time you build backlinks, either manually or automatically, no matter what from websites from PR1 to PR10, Linkwheels method, Xrumer profiles, Social Bookmarks, edu, gov, wiki,etc. But the problem is Google need time to crawl very long, could be more than one month indexed in google webmaster tools.
So if you need fast indexed for your backlinks. you need my service 
so here is my proof from my client
before
after
proof increase backlinks under 1 week
and here my example report from screen shot like this
i will give you report csv format and screen shot
Be Number One of top Page in GOOGLE
