What is the easiest way to add header and sidebar banners to a wordpress blog. Does some plugin achieve this, or do you have to do template edits? Cheers
What's the theme that you are using now? You could change the header banner in the Opinion if you are using K2 or something other themes which have this feature. Also edit the template is a good way. Edit the 'header.php' OR 'sidebar.php' template file.
If you use widgets and a widget enabled theme just create a text box and code it in. I do it for adsense on my blogs.