Not quite as big as Edwards but still big nonetheless. Pro choice group NARAL has bowed to the inevitable and endorsed Obama. In the past NARAL has been a supporter of Hillary. Here's what they had to say:
"Pro-choice Americans have been fortunate to have two strong pro-choice candidates in Sen. Obama and Sen. Clinton both of whom have inspired millions of new voters to participate in this historic presidential race"
"Today, we are proud to put our organization's grassroots and political support behind the pro-choice candidate whom we believe will secure the Democratic nomination and advance to the general election. That candidate is Sen. Obama."