I can't seem to find any worthwhile portfolios out there, so I've been cooking up something myself. So far it's just a proof of concept in a Google Spreadsheet with scripts to fetch private API data from Cryptsy and organizes the responses into sane tables and a few charts. The important part is that it all works completely automatically, all you have to do is give it the API keys. This is a feature that I think people NEED, for mining and trading, because I feel like I am shooting in the dark when trading and when holding coins on featureless sites. I am not aware of any way to manage an accounting system without huge amounts of manual data entry. Journalizing all this data and implementing inventory systems to determine balance history and profitable prices are very important to have in order to make the best decisions when brokering or even just for miners who want to sell their accumulated altcoins at the best times. WE ALL NEED THIS.

How does CryptoCoinCharts feel about offering this sort of service? I know that some people are uncomfortable with putting API keys on websites. Is this something CCC would like to pursue or stay away from? I really like the progress CCC is making, and if CCC plans to implement this feature then I would love to contribute! I'll share my work when it's done, unless anyone wants to help me with it now, I could really use the help!