Stars of Eliza's Diary, Carmela Hayslett (Eliza) and Melissa Michalczyk (Cindy) have been friends since 2001. The majority of Eliza's Diary was shot in Melissa Michalczyk's shop New Girl Boutique in Bensalem, Pennsylvania.
The book Eliza and Robbie are seen reading often in Eliza's living room is "Big Boots and Black Hair Dye" written by Carmela Hayslett.