soxos - 2:08 pm on Aug 11, 2010 (gmt 0)
How many links are you talking, and how would this effect your current back link profile? How new is your site? Sites less than a year old seem to have a harder time when it comes to inbound link penalties - probably because they just have lower trust rank, rather than it being a particular time thing..
Whether they hurt or help I think will depend on whether the links are seen as spam or not.
If its a network of article sites - then Id assume that google knows it is a network. Thats not necessarily a bad thing, but a point to consider when deciding if the backlinks will be seen as spam.
What is the reputation of the network? You could try browsing to a page within one of the sites and doing a search for its title keywords in google, see if it comes up...