I use scroll as a way to read USA Today ad-free. Their content is pretty good. I also read Vox, The Atlantic, and Verge sometimes. It's nice to not have ads on these sites.
Depends on the webmaster on each site. Some of them have embedded images. Some papers offer specific feeds for certain sections, others will only offer the firehose feed of everything. Many RSS readers offer some way to categorize incoming articles from feeds, akin to rules for email.