Two good sets here (I think!):
What technology can I use for...? if you have decided on a particular activity for your students and want to know what sort(s) of technology could support it.
What can I do with...? if you have heard about a particular technology or tool and want to know whether, and how, it might be useful to you and your students.
Phoebe has been developed by a team from the Technology-Assisted Lifelong Learning unit at Oxford University and Oxford University Computing Services with funding from the JISC Design for Learning programme.