A lot of web-pages structured by pagination or have natural meaning for Next/Previous page (forums/blogs/news).
Are there web standard that allow marking such links?
What browsers have support for key binding to follow next/previous page (to avoid searching for next link, which have different styling and positioning in different sites)?
HTML5 defines the sequential link types next and prev.
User agents could pick this up and do something with it (like offering a key binding, showing a button, etc.).