I got some high PR tumblrs and edu blogs few weeks ago and just decided to start using them for manual link building. I just have two question: 1)when creating Post on tumblr/edu blogs for backlinking purpose how much words should we have? Does it have to be a full 500 words articles? Someone should do a test and see if its possible to rank just using paragraphs and sentences. Thanks in advance for yor answer. I just want to benefit the most from each of these post. I'm a noob when it comes to SEO but I've been reading and implementing some of the methods recently shared, but since I dont have gsa etc I want to start doing manual backlinks while the services that ordered are been deliver. So here is question 2: 2) what is a safe number of manual backlinks per day? What I have in mind is 2.0,videos,edu, and pdf,audio and images backlinks. Also can I build all these links targetting only one anchor text or should I mix it up?, to make it simple for myself, for each 10 backlinks how many should have my exact keyword? Thank you very much and sorry for these noobie questions.