The particular criteria used at your company to determine when a prospect is qualified to be turned over to Sales as a lead.  A best practice is to capture no more than 5-7 pieces of information from your prospect initially:

• Name, Job Title, Company Name, Website, Telephone Number, Email
• Role in buying process
• Time frame when purchase is expected
• Size of budget available for solution set
• Preferred method of contact – by email or phone and if by phone at what time