Do visions of hops and barley dance through your head when you're snug in bed? Scratch the imbibing itch Friday and Saturday at this annual celebration of craft brews, put on by BeerAdvocate and Harpoon Brewery. Cisco, Brooklyn, Dogfish Head, and Goose Island are among the breweries bringing over 400 beers to the event. Cheers, indeed. 21+. Three sessions: 6-9:30 p.m. Friday; 1-4:30 p.m. and 6-9:30 p.m. Saturday. Seaport World Trade Center, 200 Seaport Blvd., Boston. 877-725-8849.