Maybe you use Yahoo! Pipes to create custom RSS feeds, but Yahoo! is discontinuing Pipes product in next 20 days.

Yahoo! Pipes end is on 30th September 2015. You can do "Aggregate By Keyword" and "Limit Number Of Items in RSS" only with high technology scrapers and aggregators with built-in functions like our Wordpress aggregator Ultimate and Joomla scraper.

Official news in Yahoo Pipes Blog: Yahoo discontinues Pipes.

All our aggregators are here: