StockManiac is an alternative Asset Inventory System with web based user interface. It can retrieve quotes and news feeds automatically and has a time-machine like design which distinguishes it from many other portfolio management applications.

All information in the project is kept in a tight relation to "time", which means  that you can dive back into the past and review things from there. Think of this as a sort of "investment time machine". This is most useful if you write down your thinking and observations frequently (there is a daily comments feature) and re-read it at a later time.

StockManiac keeps track of Transactions, Charges, Bank Accounts, Dividend received, Documents, Thoughts, News, ... etc... pretty much any chunk of data you might find interesting while operating on the stock markets. It is a platform independent web-based application and capable of handling multiple user accounts.