It's not the first June when Google changes the hunt results interface when you search for [gay] and other related terms. While in 2009 and 2010 Google added a colorful bar under the search box, this year there's a rainbow next to the search box.
June is the "Gay and Lesbian Pride Month" and there are many smugness parades all over the world. Last year, Google's blog built-in an article about gay parades and the Google employees who participated.
"Google supports its LGBT employees in many ways: raising its voice in matters of policy, captivating a moment to remember the plight of transgender people around the world and going the extra mile to make sure that its employees are treated fairly."