A resource that may already be known to you, but that I wish to share:
THe Folger Shakespeare Library in DC offers tools for early modern manuscripts online, including digital transcriptions and textual encoding, online courses and more http://folgerpedia.folger.edu/Early_Modern_Manuscripts_Online_(EMMO). This could be a fun and useful tool to introduce students to early modern manscripts. One tool of particular interest is the Mazarinades project http://folgerpedia.folger.edu/Mazarinades.
Teaching Resources: