The reason I ask because almost every single one of those "go to college online/at home" commercials I see on TV has a URL with a number at the end of it. When I hear commercials on the radio for lead-generating websites, the domain is almost always a keyword with a number at the end of it. It seems like when all the good domains are taken, people grab the domain they want with a random number at the end of it. In your experience, are domains with numbers at the end spammy or a bad idea to use? Are they treated any differently by Google, like how .info domains are supposedly? Like bluewidgets27.com and stuff like that.