I Stumble(d)Upon a great article the other day titled: 17 Outstanding Sources for Advertising Inspiration. The article was featured on a great design based website called Designm.ag
Some of the entries I’m sure you’ve heard of (Ads of the World, Ad Forum) but others are hidden gems (Coloribus has over 2 million ads in it’s database).
Looking at past and present advertising is a great way to motivate and inspire yourself. But it’s equally important to hone and perfect your own unique voice and style.