I went to the sites to see if I could have them deleted (all unnatural looking comments), but it doesn't look like there is any activity on these sites and 100's of spam comments that aren't going to be monitored in anyway.
Should I try to disavow them through google? Should I also try to just get more quality backlinks to override these bad links?
I had these links pointing to my landing page. I am also considering changing the landing page name and recreating it with new quality links.
My domain still gets decent traffic and ranks for other keywords, but I want the majority of traffic to go to the landing page (for me ebook sale).
Thoughts? Thanks guys - and I learned my lesson for sure - no more shortcutting.