If you choose to buy it online, the only way to get free shipping is with $99 purchases or more, but I do believe they have a bunch of web busters today, so look around the website
Once a Thread Wiki is added to a thread, "Create Wiki" button will disappear. If you would like to learn more about Thread Wiki feature, click here.
Use Coupon Code: REFRESHED - for an extra $2 off! Enjoy!