Fantastic tool! Rarely happens that a new one besides clarkmoody, bitcoincharts and one or two others enters my daily bitcoin routine, but your site did immediately.
Can I a make a few suggestions? Some things that don't work 100% yet, at least for me...
1) button to disable moving averages. not always needed, and they tend to cover the price graph which i tend to look at more often.
2) labels in window 1 (rate USD) and window 2 (bids/asks) tend to cover up the price. Maybe it's just on my small-ish screen, but if the price graph is in the upper third of the screen, the labels cover large parts of it.
3) as you gather more data (or if you include historical data that you can download, AFAIK), could you implement the option to go back further than 2 weeks?
4) perhaps the biggest selling point of your website for me is that it finally includes the option to look at the order books of the 2 biggest exchanges. but:
4.1) any chance you can include the 3rd largest, btce, as well? together they acount for 80? 90? percent of the entire USD market, so seeing the order books those 3 exchanges would really mean something.
4.2) even if 4.1 is not an option right now, could you perhaps include the option to "aggregate", under what is now the "both option". Ideally, if you would have 3 exchanges (or even for the 2 you have now), the "both" option shows the separate graph of the exchanges. However, I would love to see a checkbox that adds up the data of all exchanges. Sure, it would be an average that is not entirely accurate for any particular exchange, but to gauge the market as a whole, I would find it extremely useful.
Wow, thanks for this thorough feedback ! It's much appreciated and motivating
1) Sure, I'll add a setting for that as soon as I have figured out how to organize settings (creating a dedicated panel, adding icons, etc.)
2) That's not easy to fix properly : if I reduce the range of the Y-axis, lines will be less precise ; on the other hand, I have no way to detect overlapping of lines with the legend
3) As soon as I have 1-month history for MtGox, I'll enable it ; downloading previous data can be done, but I am afraid I won't have all the data required to compute all charts
4.1) I have BTC-e support ready, BUT I have a lot of troubles fetching their data regularly (their servers may be overloaded). Besides, I am afraid that adding lines to the order book charts makes them unreadable.
4.2) Indeed, cumulating (and averaging when relevant) the data of all exchanges can be done, I'll add that similarly to the 1st item.
Yesterday, I saw a very nice increase of the requests to my data engine (x5 in a day), that's really cool
I also received a second donation ! My objective is to get the hosting funded by the users (thus I wish I'll receive about 0.8 BTC per month).
In addition to the suggestions listed above, I also have a couple of items in my todo-list, I'll do my best to balance my efforts between all of them.
I am currently working on candlesticks support : it should be online tomorrow ! (the upgrade may break current data connections, you'll have to reload the page to get it back).
