Expert Data Miner is an interactive log analyzer that comes either as a freeware, with a limit of about 100 visitors per day, or a shareware with a 21 days trial period (no quota on visitors). In spite of the abundance of the available data, EDM is so fast that you can process entirelly a log file of 500,000 lines in 10-15 seconds normally, all the data will be available, not just the top 50 of each category.