I never had that problem. I have so few views, i don't think i'll ever have that problem:) Yes, you can. If it's a site like Hubpages(Squidoo, Infobarrel, etc.) Then contact those sites. If it's a blog, contact the blog host, give them a link to the stolen article in the mail, some proof that you published it first(like a comment made on that hub on a date before the copycat published it, for example). It's very easy to deal with these things once you know how.