Sitemap Creation Tools
A site map can help boost search engine results as well as make your website easier to navigate. So it isn't a bad idea to have one - especially when you can create one for free.
XML-Sitemaps.com free online sitemap generator
This is a great tool that makes creating a site map nice and simple. You can use this tool to create a site map which when submitted to search engines, make your site more crawlable. It is also possible to create an HTML sitemap which can make your website easier to navigate for its human viewers.
SlickPlan
SlickPlan is a web-based sitemap and flowchart generator. It is completely free with no hidden costs and is extremely simple to use with nice walk through videos if you get stuck. All you need to do to get started is set up a free account.