Abstract: A computer implemented method for executing an ANSI SQL expression belonging to the SELECT-WHERE-equi-JOIN class on data residing in a distributed file system, said method comprising the steps of entering the ANSI SQL expression into a user interface; converting the ANSI SQL expression into a map-reduce program; running the map-reduce program on the distributed file system; storing the result set of the program in the distributed file system; and presenting the result set through a user interface.

Abstract: A system and method that enables a business owner to receive leads such as phone calls or emails to their business at a prescribed cost-per-lead and a volume determined by the budget the owner is willing to allocate to the purchase. The method manages an internet based advertisement campaign, which includes performing the step of creating an internet based advertisement campaign that includes a budget parameter, a campaign duration parameter, advertisement content with a lead reference, and an ad listing with a URL that links to said advertisement content. The ad listing can be syndicated to a plurality of internet sites. The method can include the step of monitoring the leads received by the advertiser from each lead reference and decrementing the campaign budget for each click on the ad listing URL by the product of the cost-per-lead and the advertisement's conversion rate of clicks to leads.

Abstract: A computer implemented method for executing an ANSI SQL expression belonging to the SELECT-WHERE-equi-JOIN class on data residing in a distributed file system, said method comprising the steps of entering the ANSI SQL expression into a user interface; converting the ANSI SQL expression into a map-reduce program; running the map-reduce program on the distributed file system; storing the result set of the program in the distributed file system; and presenting the result set through a user interface.