Online advertising networks are struggling to make ends meet during a tough economy and a slowdown in industry growth. JellyCloud and Adzilla have shut down while AdBrite had to lay off 40% of its staff.
It's a crowded field with over 300 ad networks, many of them designed to target niche markets. Bigger ad networks, such as AOL's Platform-A, are experiencing struggles in niches such as auto, financial, and telecommunications.
What do you think of this slowdown? What are your experiences with ad networks? Let us know in the comments.