Hello,
some nice reviews for the Y2H are:
Allen et al. TIBS 20, Dec 1995 p 511-516 "Finding prospective partners in
the libarary: the two-hybrid system and phage display find a match"
BioTechniques 20:564-568 (April 1996)
Bai and Elledge "Gene Identification using the yeast two-hybrid system"
Methods in Enzymology, Vol. 283, p 141-156
timo schlosser