Would it make sense to have both wikipedia.com and wikipedia.org? Both would point to the same data, the same database servers, but wikipedia.com would have ads and would have some other subtle advantage, like maybe some more bandwidth or more web servers. You'd get a slightly better response at the cost of seeing ads. I'd still choose the .org version, but many people don't mind ads and would prefer the better response time. There are a bunch of disadvantages, like the response time of .org might suffer excessively, or the page rank would be diluted, or no one would ever link to .com, meaning it would never show up on Google search results. I've never seen this suggested. Why must we choose between ads and no ads?