For those of us that are market minded... or those that want to "buy ec" by spending zen... Ive made a series of charts powered by an evil Ferengi spreadsheet. You can find it by clicking the "Character Builder" link at the top of the screen (hey Jeff... fix that) or by clicking one of these 2 links here Our Websites Link Direct Link
The way these charts are set up is as follows:
You will see the daily value of each item. The 7 day average trend and the 30 day average trend.
The value is broken down to how much ec each zen is worth if you buy and sell that item.
The items it tracks are: Fleet Ship Modules, and Ship Upgrade Tokens. There is also a chart that tracks the Dil to Zen costs and the Zen to Dil costs.
There are 3 charts in total plus the spreed sheet showing the raw data. These are accessed by clicking the tabs across the bottom.
I manually update these daily... if I havent when you are looking its probably because I'm not online yet.