Certainly a busy time for beer festivals at the moment.

This weekend there's a pub one at the Castle Hotel in Bradford

more at 
http://www.castle-hotel-bradford.co.uk/first-spring-beer-festival.php

It's also Skipton Beer Festival, a change of date.  More at

http://www.keighleyandcravencamra.org.uk/

off there myself tomorrow night

And over the May bank holiday weekend (May 1st to 4th) there's one at the 
Cellar Bar in Batley.

http://www.downthecellar.com/cellarbar/?p=Home&newsid=99

Should be enough there to be going on with.