Yes, as long as you maintain a Grex account, you are a Grex user. Be sure to include the URL you wish it point to. Grex's web server keeps statistics. This information is published weekly, and it contains hit counts for all user pages with 10 or more hits per week. Look on the statistics page .
Information is only available in summary form.
The detail records in the log file are not published or available. The answer to this question keeps changing. Have a look at the Yahoo directory of free web counters . You should be able to use one of the counters described there on your Grex web pages without violating any rules. Yes, if you want to put a pointer to your favorite Grex item or conference on your web page, you can do it.