'GLBT' is NOT simple, straight-forward, or clear. It seems to cobble together different, unrelated groups in a vague and awkward manner. I believe it stands for gay, lesbian, bi, or transgender. Why would a group based on gender identity be included in a group based on sexual orientation? Why include the lesbian when you already have the word gay which includes all people of both sexes? Just use the term gay or, to make sure heterosexuals know that they are welcome, gay-friendly.