Where do people get online games and optical illusions for their website? If I just start taking these things from other sites and putting them on mine, is this considered illegal? or is that what everyone is doing? If it's illegal, how would I go about having some made for my site?
If you mean flash games, you can buy arcade packs like http://www.mygamescript.com/ and http://www.arcadescript.com/ Never seen anyone selling optical illusions. I think they are probably copied from books or sites.