Medium Pimpin had feeds that are updated a fair amount for Anita Dark, Lia Daniels and other models.
Score Cash has feeds for their model sites
Premium Cash has them for their pornstar model sites (top named girls too) but I've never used them (I need to add them in actually, lol)
Fame Dollars has feeds for their sites Silvia Saint, Tera Patrick and other sites.
General Pornstar Feeds come from Twistys, NS Cash, Naughty America and all the major programs. If you need it for models and use Blogs Automater I think you can add the feed and only publish based on key words so set a key word for Naughty America feed that has Shyla Stylez in it (as an example) and post those on her page/blog.