Data mine (crawl) sites

Need a program to data mine or crawl the following sites [][1][[login to view URL]][1] [http://www.share-<wbr />[login to view URL]][2] [http://www.easyroommate.com.<wbr />sg/][3] <[login to view URL]> I am interested in those advertisements put up for the last 30 days with the data attributes so that it can be inserted into my site. I also like to datamine the tenants who is looking for rooms The other two are jobsites. Also like to mine both the employer and seekers. <[login to view URL]> <[login to view URL]>