CARLA Summer institutes: https://carla.umn.edu/institutes/index.html
CELTA's online courses on Online Language Teaching.
CU Boulder offers a graduate certificate in Language Teaching with Technology.
They also have a free, self-paced course on Blended Language Learning
IU developed a free, self-paced course on developing and/or teaching an online course (not specific to languages): https://canvas.ucdavis.edu/courses/34528
CALICO offers summer workshops on technology for language teaching (typically in May and June): https://calico.org/
CULTR at Georgia State offers summer workshops for language teachers (not all about technology): https://cultr.gsu.edu/teacher-workshops/
The slides and recordings of several of my own presentations are available here
Webinars and resources on teaching languages online by the NFLRC (Hawai'i)
Webinars offered by CLIC at UIUC - Some focused on technology
YouTube playlist of ACTFL Webinars on Online Teaching & Learning
Additional resources (PDFs, handouts) curated by ACTFL can be found here: https://www.actfl.org/resources/teaching-and-learning-remotely
YouTube playlist of webinars from the NFLC Virtual Summit (2020) on Online Teaching & Learning
COERLL Webinar "Activities for remote language teaching"
CERCLL Webinar: "Teaching Beginning Language Classes in Remote Learning Contexts: A Focus on LCTLs"
IFLTA Webinar: "Online Tools for All Three Modes of Communication"
NECTFL Webinar: "How to Engage Language Learners in Online Learning"
NECTFL Webinar: "Adapting interpretive and interpersonal tasks to online teaching"
NECTFL Webinar: "Rethinking the Flipped Classroom for Remote Learning"
IALLT offers monthly webinars that are free to attend live, but the recording is available to IALLT members only: https://iallt.org/resources/webinars/
Webinar series on blended learning for world languages, offered by the Tech Center at the University of Hawai'i.
NHLRC interview on Online Heritage Language Instruction
Webinar on H5P: "Motivate Your Students with Real-Life Tasks and Scenarios"
Webinars offered by the "Language Collaboratory" (UW, UM, Iowa, Minnesota)
FLTMAG - A free magazine on technology integration in language teaching and learning: https://fltmag.com/
The "Tech Watch" section of ACTFL's The Language Educator is available to everyone.
Language Learning & Technology Journal: https://www.lltjournal.org/
LLTI listserv: subscribe by sending an email with "SUBSCRIBE LLTI" as the body to listserv@listserv.dartmouth.edu.
Technology for Language Teaching and Learning Facebook group.
If you're an ACTFL member, join the Distance Learning Special Interest Group