Mouth to mouth advertisement? You tell your friends about your fun don't you? they tell their friends etc. Or someone posts it on a forum as a tip, many possibilities, a good product doesn't need commercials and stuff like that. I was introduced to Runescape by playing Ghost Recon online, joining a clan, then my clan leader told me about a game called 'Runescape'. so miniclip is not the only way people find out about Runescape, word of mouth is probably still one of the main factors in bringing people to Runescape.