Hubpages.com is very helpful if you have some good content to play with.
One can gain powerful backlinks from there by posting blogs & by posting comments on someones blog.
Here is my Analysis & score to earn Backlinks (Do Follow backlinks)
Profile score should be 75
Hubpage score of your post should be 80
If the above parameters are maintained your link will be DO Follow.
once these scores Drop your link will change to NO Follow., so need to regularly monitor & maintain consistent hub activities.