I got a hold of the owner by looking up his information on the county website.

Then you can check AirDNA.co (or similar site). 

A new site for NH foreclosure auctions just launched called Bid Pirate, worth investigating.

Our Starter plan (which is free) is really designed to support newbie investors, as all of the available presets are what they should be using in building lists and sending marketing campaigns. 

Go to Etsy and search for "rental property tracker," and you will find hundreds of nice spreadsheets to track 10-20 rentals, usually for under $10.Software has extremely helpful features like online payments, marketing syndication (click a button, and your property is advertised on multiple sites), electronic document review/signing, maintenance tracking, and owner reports.

Once the property is on the MLS, it is visible through any number of consumer websites.  

The most popular STR listings in my area have excellent interior design.  

Quote from @Grant Francke: For those with using Buildium for property management software, do you use Buildium's public site or do you use a website you have made and maintain?

Our STR/MTR portfolio typically sees around 80% occupancy, and I’ve noticed that the online travel booking sites often push properties with consistently great guest experiences.

Give your guests high speed internet and smart TV's - they can use their own log ins for the streaming sites.