I've just posted a new version of the popular iFinity Google SItemap Providers.  This latest version includes a number of fixes and new features, as requested.

Here's what you get:

- extensible sitemap provider which gives you greater control over hidden pages, default page priorities and update frequencies

- ability to output urls into the one sitemap for popular modules like the DNN Blog Module and Ventrian News Articles

What's new in this version:

- new sitemap cache feature : set a cache time and give your server a break from constant sitemap requests

- new sitemap index feature : switch on the sitemap index, and your total sitemap will be broken into a series of linked, smaller sitemaps.  This is suitable for sitemaps with a large amount of urls

Existing users will note that there has been quite a few bug fixes since the last version, including major upgrades to the Ventrian News Article provider, supporting multi-language urls, featured article priority and more. 

Download the free install and/or source at http://www.ifinity.com.au/Products/Google_Sitemap_For_DNN/