From their site: W3Counter is a free hit counter and live web stats for your website or blog. Log analyzers give you a report a day. W3Counter statistics are live. See who is on your site while they are on your site, plus 15 other panels of fresh, useful data. Integrate your web stats into your website, web applications or desktop widgets. The W3Counter Web Stats API makes it easy to access all the statistics we gather and aggregate for your websites.