Analog is the only free log file analyzer I could find, as of November 2000, but maybe I'm not looking in the right places. You can start by asking your web provider if they generate statistics for your site. Here's an example of what these statistics may look like, if your provider offers them. Statistics pages are generated from the server log file periodically, and they may not be as useful to you as the actual log file. But they do provide a lot of information, and you don't have to process the log file yourself.
Many companies provide free counter and statistics services.
It looks pretty good, with nice statistical graphics. As a result, if someone visits your site but doesn't load the counter graphic, they won't be counted. If a visitor has graphics turned off, or if they don't stay at the page long enough for their browser to load the counter graphic, you'll never know they visited. The referring URL can show you what people searched for in order to get to your page, for example, or what sites they might have reached yours from. Since I've been talking about statistics, I feel obligated to mention The Visual Display of Quantitative Information .