SUGGESTIVE ADS The number of such sexually explicit ads vary on any given day -- from dozens to a handful. A search Friday on Craigslist for sexually suggestive roommate ads in South Florida found at least six such ads among potentially thousands on the site. In Miami, Sal Diaz said he posted an online ad for a ''young and attractive female'' to share his two-bedroom, two-bath apartment for $465 because that is exactly what the ''young and handsome 26-year-old mortgage broker'' wanted: ``I decided not to beat around the bush. With the Internet, you never know what you are [going to] get. I got a lot of phone calls from guys. A few were kind of weird.'' South Florida is not the only fertile terrain for ads that stipulate questionable demands. The Chicago Lawyers' Committee for Civil Rights recently filed a lawsuit against Craigslist for allowing ads the group deems discriminatory. The suit argues that since July 2005, Craigslist has allowed more than 100 ads to run unchallenged on its Chicago-based site. The ads include such language as ''No Minorities'', ''Christians only'' and ''Non-Women of Color need Not Apply.'' Similar ads have appeared in South Florida postings on Craigslist. $375 -- Christian Female to Share 1-Bedroom Miami Beach Apt. I am looking for a Christian female to share a clean and simple 1-bedroom apartment two blocks from the beach. Internet companies have long argued that they are immune from any liability based on a section of the 1996 Communications Decency Act. Their interpretation of federal law: Internet providers are not liable for users' postings because the sites are merely facilitators and not publishers. Although sites such as Craigslist derive income through partnerships with other Internet companies, many of the services provided are free. LEGAL BOUNDARIES Newspapers and magazines, which publish and edit news and advertising content, are governed by the Federal Fair Housing Act, which bans ads that discriminate by setting ''different terms, conditions or privileges for the sale or rental'' of property. Stephen Libowsky, the attorney representing the Chicago housing group, thinks the Internet should share the same burden. 'It doesn't make sense that you can publish a `no blacks' ad on your website, but you can't do it in the newspaper. . . . The law cannot take a back seat just because the economic transaction is going to happen over the Web.'' Craigslist CEO Jim Buckmaster did not respond to several interview requests to discuss sex-in-exchange-for-room ads on the site. Although Craigslist did not address the sexually charged ads, the site has taken several steps to educate its users about federal housing laws dealing with race, religion and other preferences. It posts links to the federal law on its site. Buckmaster posted on the site a lengthy defense to the lawsuit: ``These lawyers demand that we impose ill-conceived, mistake-prone and potentially illegal controls on the Craigslist community, which if adopted would actually reduce fair housing opportunity while eroding important free speech and privacy rights.'' The suit, Buckmaster writes, ``ignores the fact that Craigslist is not a publisher but, rather, a community-moderated commons run by its users, who self-publish and . . . use a flagging system to police the site.'' You're [f******] sick! stop doing that or at least make it clear from the very beginning. I don't want to read your ''oh and by the way, you have to sleep in my bed'' after I waste my time reading all the other regular stuff. What's wrong with you people?!! That recent response from a New York resident captures some users' frustration. They often scold those who post offensive material and ask site operators to remove such ads. The lawsuit has rekindled the debate about how best to regulate the Internet -- if at all. Michael Masinter, a law professor at Nova University who specializes in constitutional, civil rights and anti-discrimination law says Congress -- not the courts -- should make such decisions. Until then, Craigslist and others should be allowed to exist as they are, Masinter said. ``The Internet has to be permitted to flourish, otherwise we would all be reduced to an Internet serviceable to 12 year olds. If they were required to prescreen the millions of ads posted on their site, it would be the end of Craigslist.''