Last November the investor let the newspaper do a feature story on him and shadow him while he did his business down in the neighborhood.  

I'm looking for something like a magazine, podcast, newspaper, blog.  

"Pre-foreclosure" really only means "prior to the auction sale", not "pre-filing".That said, if there's still a hard-copy newspaper in your target area, check the legal notices, or try their on-line news website if it does not require a subscription.

I look for other online adds, newspaper adds and call local realtors and property managers, to see what rents they are getting for various properties.

*Teya; very good article in today's Pocono Record regarding Pocono rental properties.This is a very small newspaper but the story is on the front page. 

Or online news papers?

Even the smallest of imperfections will usually "telegraph" through the vinyl, and dirt can prevent the glue from adhering properly.  

I was reading my local online newspaper in my home city this morning and came across something.

Newspaper ads? 

I have acquired about 98% of them from the ‘for sale’ adds that I run in my local news paper for $10,000-$45000.00 deals on average.