just i replaced 160*600 with 125*125 ad unit(top left sidebar) in my blog.but my earning is same..please give some advice?thanks.
Have you got any examples of what the site used to look like? I am not sure I fully understand what your question is about this but I would really like to help. If the question is about appearance I think it looks ok but all of the ads seem to be quite condensed and in the top of the page. Aesthetically this is a bit overwhelming and I would advise moving some of those around... like maybe move the new unit to the bottom left hand corner of the blog. If the question is more technical I am not sure I can help but please do provide some clarification for others... thanks!