Whether you're a new seller on eBay or an experienced veteran, here are eight useful tips you might not know for effective selling: 1. Discount Your Prices to Compete Effectively 2. Know Everything About what You're Selling 3. Specialize 4. Add a Picture and Sound to Your Auction 5. Use a Sales Auction Management Service 6. Establish a Reputation for Credibility and Honesty 7. Write a Powerful, Descriptive Headline 8. Be Realistic You can use tools such as "bidvista" to automate most of this and research on keywords and competitors.