I have two sites which are in the same niche, one got hit by penguin slightly (not much only around 10 or so places) and the other I have not really done much work on but it is in the top 100 for all keywords. I want to redirect the site that dropped a few places to the other and carry on building links to that one. It already has around 3k links on it so how does it work when you redirect another domain to it? Do the links combine and it give it a boost? I am not doing it for this reason, basically I didn't own the domain that got slapped and I want to sell the site as I am moving onto something else but I want to get it to the first page first of all.