CAMBRIDGE, MA Gay and lesbian consumers are not only more likely to book travel online than their straight counterparts, they also have more buying power, representing a lucrative niche market, according to Forrester Research. In a recent study of online travelers, Forrester found that 41% of gays and lesbians had booked travel on the Internet compared with 28% of straight online consumers. The study also found that gay and lesbian bookers, who account for 3.5% of online travelers and represent more than 5% of all online travel buyers, will research nearly $2.9 billion of travel online in 2001. (1/22/01)