After the 5 Tips on Brand Naming, here is an interesting post of Steve Rivkin is the co-author of The Making of a Name : The Inside Story of the Brands We Buy on 5 Myths of Brand Naming:

Myth #1: Size doesn’t matter.
Yes, it does. Shorter is better in everything from memorability to packaging.

Myth #2: There are no words left to steal from the dictionary.
Not true. Your speaking vocabulary may only be 30,000 words, but a hefty dictionary will yield 750,000 words

Myth #3: Coining a new word is easy.
But the trick is to create a new name that is meaningful, impactful and starts the positioning process for the brand or company.

Myth #4: Manufactured names are all the same.
A made-up name might be a simple fusion of two easily recognized words, it might be an altered form of a recognizable word or it might be a foreign word that some people would recognize

Myth #5: Customers will take our name literally.
Good names are suggestive. They are bundles of possible meanings. They are not contractual commitments.

Read the full 5 Myths about Brand Names