For me, used key words like "venom structure" "tissue destruction by venom" "purpose venomous enzyms" ect. ect. etc......A lot of links, if you look at the path below, will take you to Universities, where in some cases, students have published their thesus on this subject, or one closely related. Alot of stuff written by Post doctoral students, professors, etc.
You can usually tell if the site is worth the time to read it thoroughly. My problem is remembering to
SAVE THE LINKS. LOL Then I get to search all over when the question arises again.
Ciao,
Rick