Quoting Xavier Bestel xavier.bestel@free.fr:
PS: I still would *love* a page describing the add-on modules typically needed for common scenarii. The whole module list is too big.
i agree wholeheartedly - i am also interested in the module although by now i may be commited to gallery2 integration instead. i figured it out by reading the source code and looking for an appropriate module with the same name as the javascript being called. it would be nice to have an easier way to figure such things out, both things that are out there that you may need as well as which activated modules are actually being used on your own site.