She continued compiling trailers throughout the 1990s, with her last such compilation released being "Bride of Trailer Camp", released in 2001 (others in the series include: "Trailer Camp", "Neo Homo Promo", "Afro Promo", "Trailers Schmailers"). During this period Olson also wrote "Ultimate Guide to Lesbian & Gay Film and Video" (1996). The book was based on Olson's BA thesis. Her next book was "The Queer Movie Poster Book" (Chronicle Books, 2005). This book was suggested in 1991 by Stuart Marshall, who recommended Olson pitch the idea to London's Gay Men's Press. Although the book was turned down by both them and Serpent's Tail, to whom the idea was pitched as a follow up to her previous book, Olson was eventually commissioned to write the book in 2002 (published in 2005, it went on to be a Lambda Literary Awards nominee). Olson based the work in part on her own collection of such material, which she has subsequently donated to San Francisco’s GLBT Historical Society. Her collection was exhibited at the San Francisco Public Library in 2004, with Olson delivering an accompanying lecture.