Seen a few sites that claim to give free bitcoins but are really not true, does anyone know if there is any sites that really do give you bitcoins free of charge?

Of course not, that is like asking, where can you go down town and people will give you free money.

You may get discounts for joining or other promotions, but there is no free money. Seriously the money has to come from someone's pocket, a person or company is not going to give people money