The OpinionJournal Federation of Web sites is up, and I'm pleased to say that we're part of it. (The current list of members is Council on Science and Health, City Journal, Claremont Institute, Commentary, Competitive Enterprise Institute, Dynamist, Eduwonk, First Things, InstaPundit, Larry J. Sabato's Crystal Ball, Overlawyered, Pacific Research Institute for Public Policy, RealClearPolitics, Reason Foundation, Property and Environment Research Center, The American Spectator, The Federalist Society, The Heritage Foundation, The New Criterion, and us.) Right now, the Federation page links to all the sites, plus a featured article from one of them; I'm not sure what more OpinionJournal plans for this, but I look forward to seeing.
Naturally, OpinionJournal exercises no editorial control over what we post here, though of course they're entitled to choose which, if any, of our posts they'll specially link to.