I want to open up this subject because I have not seen it here on this board yet.
In my niche I have some heavy weight on first page results on decent keywords in Google.
My idea is that maybe I can combine my site with one of my competitors that competes with me. I wonder what would happen if we redirected all links thru redirects to one common domain and combined both sites info. Might be risky but it might pay off.
If you think about it, 2 major sites combined for a particular niche just might take top seo results. Combining linking power could be a good thing.