I am considering purchasing text links on about 10-15 blogs hosted on blogspot. Each of these blogs is related to my industry and has a good number of backlinks. In fact most of these blogs are added in yahoo's directory. However, since these blogs are hosted on blogspot, their IP is the same.
My question to you all is whether I would benefit more by buying links on 10-15 of such blogs or 10-15 different IP sites (assuming they have the same backlinks and are industry specific)?
If they all have individual yahoo listings and are relevant to your sites theme I wouldn't hesitate to purchase them. Because they share the same IP it might be a good idea to naturally build these links, see if you can negotiate having 1 link added a week for 15 weeks. Also vary the anchor text and content around the link as much as possible.