How closely do you check any expiring domains if you're buying them for re-sale, brandable or keyword? I had checked out several names recently that looked great, with branding potential. However, one domain had previously been a porn site, another had been shut down by Homeland Security for selling counterfeit goods, and another had a really close match (one letter reversed) to an existing trademark. I regretfully passed on all of them. Checking up later I found that all had been taken and were now for re-sale on a variety of marketplaces. Yikes, maybe I should have got them myself. So how carefully do you check expiring domains before buying for re-sale?