Hi
I used Quantlib to created a free online utility to build interest rate yield curves from cash-deposits, forward-rate-agreements, interest-rate-futures and interest-rate-swaps.
Currently the utility lacks a proper set of data (I am working on the problem), and cannot really do anything other than build vanilla yield curves.
I would really apprecaite it if everybody could take a look at the site and comment, especially on possible enhancements and what features I should add to make it actually usefull.
The website can be found at
http://www.bramaan.comRegards
Theo Robbertze