A link-building company has offered to pay me $60 / month to post a link to a website that is related in subject. My website is for my web design business, and the purchased link would be to a web-hosting company or a website that compares web hosting companies.
A couple of questions that I'm hoping people can help with:
If I accept this offer is there some scenario in which it would hurt my search engine ranking (particularly, with Google)?
If I accept this offer is it important (or even relevant) to clearly mark the link as an advertisement?
I understand that it is a bad idea to link to "bad neighborhoods". How would I go about trying to find out whether or not the site I'm linking to is in a bad neighborhood?