You use counters to see how many people visit your site. Some counters also offer statistics, but I don't think personal non-commercial sites need these features.
You can get free counters from:
- BoingDragon Web Counters
This site offers very unique counters. The counters are animated characters, like a wolf, a dragon, a fairy etc.
- The Ultimate Counter
This site offers a great variety of fonts and styles for your counter. It also offers clocks.
- Le Fast Counter
Very simple counters. You can choose between a few colors. But they do the job just fine.
- AADDZZ counters
- BeeSee.Com Hit Counters
A few simple and nice styles to choose from.
- Many "free homepage" providers (like Tripod, Geocities) also offer counters.