For instance, I'd like see my position for the keyword "folsom county apple juice" at a certain point in Jan, Feb, Mar, Apr... etc.. Options for weekly, monthly, yearly.
I was at an SEO talk once and asked about that, and I got some canned response like "search optimization isn't a 'keyword' focused business anymore".
Maybe that's true, but I can see the ranks in Google Webmaster tools, and that's what I'd like to see plotted. I don't even care if it's an approximation, what I'm mostly interested in is the trend line. Am I moving up or moving down over time?
Granted, I'm pretty lazy and this might exist, but I've looked at a few services and I haven't seen it yet.
Also any rank tracker can do that too. I use proranktracker.com for my personal URLS and serpwoo to track the entire top 20 sites for any keyword.
After seeing this and SerpBook, I'm not really sure how I've missed these services all this time.
What I'll have to figure out now is reputability.