What are some of the characteristics of a poor/weak password?

What will be an ideal response?

A poor choice of password or weak password has one or more of the following characteristics:
* Contains less than eight characters
* Is a common usage word such as names of friends, family, pets, coworkers, and so on; computer or other technical terms
* Is a word from a U.S. English, British English or foreign dictionary
* Is a representation of birthdays and other personal information such as addresses and phone numbers
* Contains patterns of characters or digits such as "aaaaaaaa," "q678q," "123123," "001a001," and so on
* Contains any values from above with a slight transformation such as being spelled backwards or repeated once
* Contains any values from above preceded or followed by a digit or another set pattern such as "mypassword88" or "88mypassword"
* Has never expired