I'm doing some research work into content aggregators, and I'm curious how some of the current craigslist aggregators get data into their mashups.
For example, www.housingmaps.com and the now closed www.chicagocrime.org
If there is a URL that can be used for reference, that would be perfect!
While continuing to research this area, I found an awesome site that does partly what I'm interested in:
It uses the HTTPReferer of the client browser, which is interesting but not ideal. The author of the site also claims to have royally ticked on CL, which I understand. It also gives clear example of business need, which are similar to my needs, and why I'm interested in this topic.