Have you been stalked by a pair of shoes lately?
If you’ve looked at products on a website, you may find ads for these things following around. ‘It’s weird to have a pair of shoes I looked at on a brand’s website follow me around the web for days or even weeks,’ writes Doug Kessler at Velocity Partners. I had the same experience after I downloaded a PDF on lead generation from a site: now the banners follow me everywhere I go. Read more