There are fake news sites where you know the stories are satire, and then there are those that post fake news but don’t tell you, or at least not exactly. Rachel Alexander compiled a list of these, some of which are left-wing constructs created to trap Republicans into sharing fake news, or so the story goes.
Either way, these “news” sites do not (or did not) openly advertise any of their “reporting” as fake or as satire. When confronted by these ‘sources’ consider the content accordingly.
Sites with fake news (Snopes also has a list with details here.)
http://nationalreport.net
http://theonion.com
http://www.private-eye.co.uk
http://www.newsbiscuit.com
http://www.thespoof.com
http://www.sportspickle.com
http://www.unconfirmedsources.com
http://www.crystalair.com
http://www.enduringvision.com/index.php
http://www.derfmagazine.com
http://www.newsmutiny.com/Index.html
http://www.thedailymash.co.uk
http://www.duffelblog.com
http://newstoad.net
http://rockcitytimes.com
http://worldnewsdailyreport.com
http://huzlers.com
http://abriluno.com
http://diversitychronicle.wordpress.com
http://holyobserver.com
http://News-Hound.org (maybe not satirical but a lot are definitely fake)
http://www.sott.net/ (seems to be a mixture of satire/real news with no obvious way to tell which is which)
http://adobochronicles.com
https://aceflashman.wordpress.com (News lifted straight from The National Reporter)
http://thepeoplescube.com
http://dailyleak.org
http://odgossip.com
http://witscience.org
http://christwire.org
http://nymeta.co (News lifted straight from The National Reporter without checking them)
http://worldnewsdailyreport.com
http://tyronetribulations.com
http://madworldnews.com (potentially fake stories)
http://dailybuzzlive.com
http://www.thenewsnerd.com
http://stuppid.com (http://realorsatire.com/stuppid-com)
http://newsexaminer.net – mixture of real and fake news