LonelyWifeHookup.com offers online dating to married women, because some wives need more than their hubbies can give. It's popular, but it's not entirely clear why so many visitors come to the site. One thing that might make it garner some attention is that it's super quick to join. You don't need to give any info beyond a valid email address. There are just a couple of problems. You can do free Canadian or American local lookups, but you can't see full profiles or even last login info. In other words, you get very little before upgrading, making it hard to decide whether it's worth upgrading in the first place.