Google has notified me that some of my websites aren't being indexed because they lack site maps. There are many site map programs available, but I wondered if anyone could offer any recommendations.
I prefer something that's free or very inexpensive. My sites all run on LAMP (Linux, Apache, MySQL and PHP). Some are huge - over 100,000 pages.
I don't necessarily need anything fancy, though it would be nice to know about special features. However, my primary need is a simple, robust site mapper that can simply handle the basics.
P.S. I use a Mac, not Windows.