When creating your e-sig, follow standard email formatting rules, and keep the width of your e-sig to 65 characters or less...Read
e-sign too long. If you're posting to newsgroups, moderated lists, or discussion boards, using an
e-sig which is more than 4 or 5 lines long will annoy readers.
And including very long e-sigs in newsgroup postings may cause flamers and others to give you a hard time.
Always include "http://" as part of your website address, so your URL will appear as a "hotlink" to your recipients. (this works in most email readers)
"mailto:" to the beginning of your email address so it appears as a hotlink.
To help inspire you to create an effective e-sig, and to jogg your creativity, here's a sampling of actual e-sigs...