Books to check out:
Everyday Literacy by Stephanie Mueller (J 372.6 Mue)
Summer Bridge Activities: Preschool to Kindergarten by Julia Hobbs (J 372.21 Hob)
(Summer Bridge... would be a great addition to your home library and is available at local bookstores.)
Learning Games Exploring the Senses Through Play (PRNT J 649.55 Sil)
Early Learning Basic Skills PreK - 1 by Sherrill B. Flora (J 372.21 EAR)
 

Links to click:
Scholastic web site http://www.scholastic.com/parents/index.asp 
Jan Brett’s web site http://www.janbrett.com/activities_pages.htm 
RIF web site http://www.rif.org/ 
PBS Teacher Source web site http://www.pbs.org/teachersource/prek2.htm

 
Things you can do every day:
Talk to your child and listen when he/she talks to you.
Answer questions as completely as possible.
Name, label and point out letters, numbers, shapes and colors.
Encourage your child to be independent even if it takes a little longer to get ready.
Read together every day.
Limit the amount of time your child watches TV or plays video/computer games.