Give users links to needed support. For example, provide links to download any plug-ins that your page requires. Use plug-ins only when needed. If the information appearing on your Web page requires the use of a plug-in or helper application, include a link to the site where the necessary software can be downloaded. If the benefit of a specific plug-in is not compelling and obvious, your visitors may simply decide your site is not worth the effort.
Counters can backfire.
Counters may be good advertisements for pages with many visitors. Otherwise, they are either of limited use or an embarrassment. Access logs are a much better way to monitor traffic, if that is your goal. Use browser-specific features with caution. Browser-specific HTML tags or other tricks will annoy those readers who do not share your particular browser preference.