Visit the category where you think your website would be best listed.
Click on the suggest URL link at the top and fill out the form
If the suggest URL doesn't exist, choose one of the subcategories instead.
Some volunteer will process your listing suggestion in time but we can't predict who or when that might be. Elapsed times can range from a few days to a few years. There is no need to re-suggest your website and doing so could be counter-productive because a later suggestion overwrites any earlier one.