www.nabij.eu

• Get a nice, short, still available (for not too much $) domain name. (Eu or com is usually easier to get if you are an individual).
• Learn java or find someone who knows it well and plan a nice simple web page. Let it be about posting ads online, but instead of the old boring model let it show stuff as it would show on a real board. Furthermore the posting should be as simple as dragging objects onto drawings in diagramming tools.
• Don't forget to add smart search functions that only display sought categories.
• Charge € for larger than ordinary pin ups and add ads.
• Get it online cheaply (partner with some smaller hosting provider).
• Market it and hope it looks good enough for the consumers.