of course you know what happened to many blog networks, As you know goolge de-indexed thousands of blogs this month.
But the question if google is going to give low value for link juice coming from those blogs ( those not affected ) . what left then ?
Blogs where giving so much link juice value, Trying to think like Google , if they are going to give low value for blogs and for forum profiles / blog comments , So what's left !! social ? ( most of social sites have no-follow )
In short, What will be the major player for most valuable back-links ?
Would like to hear from you