All of these are off the various listservs I subscribe to.
Spanish listening: http://www.spanishlistening.org . Offers videos of native speakers speaking, followed by short comprehension quizzes afterwards. It could be a good source of comprehensible input. Some sorting and pre-viewing might be necessary.
Cuentos en Powerpoint: http://www.zona33preescolar.com/cuentos-en-powerpoint/ The website's target audience is pre-school aged native language learners. It contains a large number of stories in PowerPoint format, which might be a good alternative to a classroom set of readers. Highlights include a few books students might already know (Maisy, for example), books about shapes, colors, opposites, etc., and--I almost can't believe this--a dual-language book in Spanish and Náhuatl. I may try to learn to read Náhuatl now.
Lingt language: http://lingtlanguage.com/ This website, if it functions as advertised, might be a game-changer. The idea is that a teacher creates an audio assignment and distributes it to students via computer. It says it can be set up to provide some kind of individualized feedback, but I don't know how effective they could possibly be. Compare this, by the way, with the MSU CLEAR tools; they might have somethng similar.