Here’s this week’s linkfest:

• What every freelancer should know. Advice from a salon.com writer on traps and tricks.
• Where are all the great ideas? Harvard Business Review editor asks where should we be looking for the next wave of big ideas?
• Mistakes pro bloggers make. Solid advice on contracts for blogging and what rights to fight for. (Hat tip, Working Girl)
• Report of amazon.com changing prices per user. According to this report, they dynamically change prices based on their profile of you in some cases.