Please apply only if you master the Twitter and Facebook API.
The script will be write in Coldfusion (better) or in PHP and run on scheduled task. Each time it runs it needs to check the twitter and Facebook public timeline to get the message that have any value prefixed with the symbol $. For example: "$IBM $GOOG and $AAPL just popped on my scan within the last 2 minutes ..."
The messages are filtered according to a set of rules can be edited, used as regular expressions, the rules will be like "include posts where there is the word / and X" or "leave out the message that there is the word s Y. Rules will be in a editable text file. Filter base already include the exclusion of all common bad words. The result will be in JSON format and stored in the database (MSSQL).