Hi, I have always ran site for the past few years not so successfully though but i have never knew a site-map could work so great in getting your website crawled and listed in the search engines. Just 1 week ago i submitted my site-map for my forum and i now have allot of my URLs listed and getting traffic. www.widewebtalk.com Yahoo: 169 URLs listed Google: 15 URLs listed What i would like to know is how often should i update my site-map weekly fortnightly or monthly. I am not sure if updating it and submitting it to much would be considered spamming or black hat.
Update it whenever you add new content to your site. You can automate this easily if you use a Wordpress Blog with the Google Sitemaps plugin.
Sitemaps are a very useful tool especially for large sites or sites with unconventional structures. The minute or so it takes to submit a sitemap is well worth the time.