You won't get anything other than a point-and-shoot for that price. However, you can find some used options for entry level DSLR cameras that are pretty cheap.
Right now, I use my sister's old camera which is a Nikon D3000
https://www.amazon.com/Nikon-D3000-Digi ... B002JCSV5I
Amazon has it at $469 right now but honestly, I wouldn't pay that. For a little more you could get something better.
But I did find one for $171
http://www.ebay.com/itm/Nikon-D-D3000-1 ... 3073526577
Here's another that's still in bid, currently $80 but it does have two days left on it:
http://www.ebay.com/itm/Nikon-D-D3000-1 ... 2801694509
I would like to ask, what are you going to use it for? I know you said advertising but what kind of advertising?
Lastly; if you go the dslr route then just about everyone agrees that you should spend most of your budget on the lens and buy a cheaper camera body. I agree with this as well. Cheaper cameras can perform really amazing with a great lens but the reverse is rarely true. But as long as you know what you're doing then a cheap camera and a cheap lens can still perform.
There's a cool youtube video series that has professional photographers take pictures with absolutely horrid cameras (some were actually toy cameras) and they still managed to do pretty well.
TL;DR
What are you going to be advertising?
Point-and-Shoot will be cheap, and with good skills you can still do pretty well
If you buy a DSLR then buy a cheaper camera and splurge on the lens
