wanderingmind - 2:35 am on Jun 3, 2004 (gmt 0)

My experience is that when you cross-link similar, on-topic sites, one of the sites benefit. Mostly the bigger site/ the older site.

I think the increase in visitors to the other site is because of this. A chunk of SERPs where your first site used to appear now show the new site's pages, in my opinion...