My site allocates a 330px right column on each page, where I have two 300x250 Adsense banners, three locally sold ads, and a 300x300 block where I display intros to other features of my site.
But some pages are much, much longer than that. Just today, a page (with user-generated content) was more than 10,000px in height! This means that the site visitor scrolls for a long time, with a blank 330px column.
Since Adsense won't let me place their ads in a fixed column (a decision that I don't understand), can you guys recommend other ideas for things to place here? Revenue generating is great, but not a deal-breaker. If it's not revenue generating, though, then I'd prefer to link to a section within my own site (so at least I get a few ad impressions from the pageview).
I'm already plugging in Outbrain thumbnails, which is good, but generates less than $0.01 PPC. I do NOT want to plug in a widget (especially Java based widgets), but RSS feeds are fine.