If you want to quickly collect information from people, a Google Docs Form is a great option. This sample survey about blogging will give you an idea of what the simplest form looks like, It literally takes just a few minutes to set one up (see my instructions) and get it out to people in an email or embedded in a web page, or as a standalone page.
|Page/Post:||Collect data using a web form|
|Spreadsheet:||Blank Example spreadsheet with a Form|
|Form:||Sample Live Form - Blogging Survey|