Hi All,
I recently had to send a client the sizes that banners need to be in and I came across this site that has some pretty good info.
One of the things that caught my attention was a new size for 2013.
Here are the Google display advertising banner sizes.
Width x Height – In Pixels
320 x 50
468 x 60
728 x 90
250 x 250
200 x 200
336 x 280
300 x 250
120 x 600
160 x 600
2013 New Size! 300 x 600
Here is where I got my info from and found interesting to read all of their tips.
Thanks