Election 2018 Organizing Sites
https://swingleft.org/ SwingLeft helps you identify the Congressional District nearest to you that went Republican in 2016 by 15% or less of the vote. These are promising districts that need your help in 2018.
https://flippable.org/ Flippable focuses on those state level elections that have a good chance of “flipping” from Republican to Democrat in the 2018 election. Helps you locate the all important state level races near you .
https://redtoblue.dccc.org/ The Democratic Congressional Campaign Committee’s Red to Blue List is DCCC’s top 100+ races.
https://www.letamericavote.org/Let America Vote is an independent group raising resources and providing field support for voter registration campaigns focused on key districts in the 2018 election. They organize local field operations which you can join.
https://www.indivisible.org/ Indivisible is one of the original and largest organizations in “the resistance.” They do a great deal of local organizing. New things happening all the time.
https://front.moveon.org/Moveon.org has lots of information about the 2018 election…and more!
https://fivethirtyeight.com/ 538 is a credible source of election information on the status of various campaigns. If you feel the need to follow the day-to-day “horse race” of polls and speculation this is the place to do it.
https://ballotpedia.org/United_States_Senate_elections,_2018Ballotpedia is a Wikipedia style data base of elections that will is a generally reliable source of information about the electoral nuts and bolts. A good place to learn more.