Okay here it goes.
Go to go0gle and type ''website under construction'' + city
This will give a good amount of sites that still need fixing - they usually have their phone numbers and email listed. I tend to email them as cold calling isn't my thing.
Sometimes, their emails might not be listed, but not to worry, these days many companies are catching the facebo0k fever.
Type the company name into go0gle or just go directly to facebo0k and search for them. An email is usually listed.
If not, move on to the next site as there are tons out there!
Write up a good convincing email (do NOT make it lengthy) something short but extremely descriptive - offer a discount or something
Use bold/red letters to stress on points you want them to notice.
Email as many as you can on a DAILY basis - dont email once and expect results. Keep at it until you succeed.
Hope this post was helpful, if you have any questions post them here and I'll try and answer them to the best of my knowledge.
Success to you all