Full-Text RSS - Full-Text RSS transforms partial feeds into full-text feeds.
Feedity - Create RSS feed for any webpage or podcast. Extract data and turn dynamic websites into spreadsheet or API. Feedity is an online RSS feed generator and podcast feed builder tool. Display feeds on website.
Inoreader - Dive into your favorite content. The content reader for power users who want to save time.
FiveFilters Feed Creator - Create feed from elements (e.g. links) extracted from a given web page
Feed.exileed.com - This service transmits your favorite social networks by RSS.
Feedio - Feedio helps bloggers manage and grow their email and RSS subscribers.