To solve this question, the user needs to have a basic understanding of Internet terminology.
Now, let's go through each option and explain whether it is an Internet term or not:
A. Cookies: This is an Internet term that refers to small data files stored on a user's computer by a website. These files are used to remember user preferences and login information when revisiting the website.
B. Spam: This is an Internet term that refers to unsolicited or unwanted messages, usually in the form of email, that are sent to a large number of recipients.
C. Netnannies: This is an Internet term that refers to software or services that help parents monitor and control their children's online activity.
D. Brownies: This is not an Internet term. It is a type of dessert.
Therefore, the answer is: D. Brownies is not an Internet term.