storing webpage specific data in to DB, HOW????

Hi All,


I need some quick help from you guys where I have stucked from the past few days.

I have 1000's of site links from which I mentioned few links from which I need to capture the data under columns "Bid

Number","Project","Bid due date", and othercolumns data(NOTE - In all the sites there is no possiblity that it will have the

same titles and websites are created using different languages like .NET,Java,HTML). Not only capturing the data under

columns but if there is any new bid is posted I need to inform to the users that a new bid has arrived.


Can you please guys help how can I achieve this.

Please refer these few links are below

http://www.polk-county.net/bids.aspx
https://secure3.fcgov.com/bso/external/publicBids.sdo
http://www.ci.wheatridge.co.us/index.aspx?NID=151


Thank you all for your precious answers. Your help will be grateful to me.