Here below are some links to check out.
SWOP (U.S.): the sex workers organization of the United States (with lots of resources!)
NSWP: Global Network of Sex Work Projects
Behind the Red Light District: a blog about a window prostitute in Amsterdam
Transgender Christians: lots of resources about Christianity & transsexualism
Dutch (with English pages):
Local health organizations (prostitution/sex work):
Local health organizations ((mostly) human trafficking):
Note: The health organizations mentioned are organizations I recommend based on the information or experiences I have with these organizations. If you have concerns or would like to introduce me to a specific organization: I’d love to hear from you.