Show & Tell is a place where you can show the products you've created and tell everyone a bit about them. This is also the place to request for other forum members to evaluate your product and provide some feedback.
If you are a new forum member, you will not be able to create links until you are trusted a bit more by the system. It's a good idea to participate in some other discussions before posting your product here. A great way to start participating is to post an introduction in the 'Introductions' category.