Here is the definition of "Promotion of Prostitution"
§ 43.03. PROMOTION OF PROSTITUTION. (a) A person commits an offense if, acting other than as a prostitute receiving compensation for personally rendered prostitution services, he or she knowingly: (1) receives money or other property pursuant to an agreement to participate in the proceeds of prostitution; or (2) solicits another to engage in sexual conduct with another person for compensation. (b) An offense under this section is a Class A misdemeanor.I could see selling an ad as being covered if, and only if, you knew that you were being paid by the proceeds of prostitution being covered. But it's hard to really see that as being "pursuant to an agreement to participate in the proceeds of prostitution." Hard to prove. Might be a you can beat the rap, but you can't beat the ride sort of deal.
But even then, it doesn't encompass posting a review.
http://law.onecle.com/texas/penal/43.03.00.html