A Short Phone Call Goes A Long Way
Most articles on link building will tell you to email the webmaster with a link request and provide an html code that they can simply cut and paste. According to John Alexander with Beyond-SEO and Search Engine Workshops, a phone call may go a lot further...
"Use voice instead of email to reciprocate and try contacting people by voice instead of email. More people are inclined to respond to your request when you introduce yourself by phone and let them know that you were visiting their site. Ask permission to link to their site. In return, you might state that a link back is appreciated but not required. Assuming they say yes, then you simply link up to them and confirm by email once you have confirmed. Warm personal voice contact goes a lot further than a cold email or even a warm email letter."
Of course, you have to be able to contact the right person. If a phone number is readily available, this seems like a new and interesting way to seek out links.