How to do Event Posters that Attract the Crowd?

Ok today I want to design an event poster to launch a website. Are there any case studies or examples that u guys/girls did that got a lot of: 1. traffic to the website? 2. event attendees & participants? May be you can analyse your poster in the following format- How long was the marketing campaign: Number of visitors to website: Number of visitors to the event: Lets list out some good examples of event posters that had a successful impact on attracting event attendees: How long was the marketing campaign: 30 days Number of visitors to website: Number of visitors to the event: How long was the marketing campaign: 30 days Number of visitors to website: Number of visitors to the event: Give me some suggestions here with your comments. Click here: AlexDesign.net.ms