Proliteracy is the subscription website of the non-profit of the same name (see "more). It has scads of resources: a new quarterly adult ed journal ALE; self-taught asynchronous courses on a range of ELL and ABE topics, and more.
Proliteracy is an international literacy organization, product of the merger of Laubach Literacy International and Literacy Volunteers of America in 2002. News for You Online and New Reader's Press are under this umbrella. Ask literacy coordinator for the log-on info.
This group of tools aligns with the Step Forward workbooks and the Oxford Picture Dictionary used in the SSPL Literacy Services. You'll find unit lesson plans, worksheets, and audio clips that correspond to specific workbook units.
Access to Mango Languages learning, that has a phone app, is free for SSPL Patrons.