Yahoo's adult tickling area has 62 clubs, the largest of which has more than 1,500 members. I've often told 20-year veterans of perversion about my interest, only to see a mixture of amusement and revulsion appear on their faces. The bottom blanched and made a swift exit. One reason for the invisibility of tickling may be its separateness. Instead, they gather in their own spaces.
Straight ticklers can buy a bevy of magazines and videos mostly depicting women tickling each other.
Gays have tons of message boards, where guys can find other guys into tickling, or speculate about whether David Duchovny's feet might be ticklish. The most popular of these is Jack's Tickling Rack. Regular kinksters see themselves in Madonna or the Genitorturers. Tickle fans tend to find their truest reflection in old Warner Bros. cartoons. It's easy to see why tickling might seem childish.