low $xx undeveloped. My suggestion - develop a website that tracks corporate take-overs. I know this would be useful on a number of levels if you were able to do this successfully. Example: You own a product from Company X and bought it last year... now you want to get in contact with them regarding this product, but they are nowhere to be found. Check JustBought.com and find out that Company X is now a subsideary (sp?) of Company ABC.
Might be a heavy task to track takeovers on a daily basis though.