What are some alternatives?
When comparing MySitemapGenerator and GlooMaps, you can also consider the following products
FreshRSS - FreshRSS is a free, self-hosted RSS aggregator.
DYNO Mapper - Create Sitemaps with the DYNO Mapper Visual Sitemap Generator.
XmlSitemapGenerator.org - Easily create HTML, RSS and XML Sitemaps online for free.
XML-Sitemaps.com - Free Online Google Sitemap Generator.
Web-Site-Map.com - XML Sitemap Generator - Free online XML / Google Sitemap Generator. Easy to use, no need to sign-up. Good for big sites.
A1 Sitemap Generator - A1 Sitemap Generator has been in active development and sold since 2005.