While none of it as singularly impactful as the first-person narrative "Why NBA center Jason Collins is coming out now" that Collins did with Sports Illustrated writer Franz Lidz, there were some other excellent pieces of writing done on the heels of the announcement Monday by Collins.
About the piece itself was SI Senior Editor Chris Stone who wrote "The story behind Jason Collins' story: How it happened" and Lidz a day later provided "Jason Collins overwhelmed by enormous support for his announcement".
In terms of pieces published placed other than Sports Illustrated, Bruce Arthur wrote for the National Post the excellent "Jason Collins coming out a new beginning for sports" and specifically about the #98 jersey homage to Matthew Shepard, Sam Gardner wrote for Fox Sports "Collins' act wows victim's parents".
Additionally, "The meaning of Jason Collins' coming out" was written by Cyd Zeigler for SB Nation Outsports and "Just the Beginning" by Chuck Culpepper for Sports on Earth and the last piece to mention here was "The Decision" by Charlie Pierce for Grantland. Like many pieces I've seen from Pierce, it's extremely thought-out and contains the interesting idea that people shouldn't get caught up in basically congratulating themselves and society as a whole for being so accepting of Jason Collins on the heels of his coming out publicly.