tim222 - 10:10 pm on Mar 31, 2010 (gmt 0)
I've been doing this for some time and it does help on the revenue. Splitting a long article into two pages presents each viewer with more ads, increasing the liklihood that they'll see one that interests them.
My rule of thumb is around 400 words per page. I don't know how that works out in pixels but if you scroll once you can see the footer.
In a multi-page article that people actually click through to read, they are not likely to click on any ads until the last page... simply because if they did they won't get the rest of the article.
LOL - I must not be a captivating writer. My stats show that the first page always has far more views than the second page which has more views than the third, and so on...