I haven't used a newspaper ads in quite some time - years really.
Craigs List and Yard signs are the way to go for sure. This week alone I put owners into 4 properties on land contract just using craigs list - I ran out of signs! they will be ready next week but will not need them this round.
Understand it takes time - you may get calls everyday - you may not. Last week was slow this week was unreal - same ads.
But I generally get more targeted called from the yard signs.
I have done many tests with and without photos - sending people to my site with photos and video's and frankly I have found that it really doesn't matter. In fact - I got lazy this week and didn't post a single photo on CL and still 4 homes sold.
The key is to mix it up - don't keep placing the same ad over and over - try different things.
Backpage works great in some cities across the US and not at all in others - i have had mixed results with them. Some cities I get nothing - some cities I get a lot.
I prob. get more calls from CL but more targeted calls from the signs.