Hi! I've been building links on a daily basis for 3 weeks now and I was wondering why every tutorial recommends to comment on blogs. Every single blog I've been adding my links to give me nofollow backlinks. Do they still give any power to my website? I've read everywhere that they don't help getting a better rank. I actually read everywhere that google doesn't give nofollow links any attention. Should I keep commenting on blogs or is it useless and I'm wasting my time? Thank you!