Scrape data from a website and post it on the blog

While importing from machine-readable formats, such as RSS is quite straightforward and usually has plenty of tools around… it is very different story with arbitrary HTML.

If you are not up to code this from scratch, then closest semi-automated tool I know is Dapper – it can process HTML pages and according to rules that you setup in visual interface convert it to other formats, including XML and RSS. On other hand I am not sure it will be able to handle your requirement of page discovery.