-- news sites via rss with heavy keyword filtering for news that's important to me like hometown news etc (Google alerts style)
-- firmware updates from various devices that wouldn't otherwise notify me like kindle
-- posts up voted over X times in a period on smaller, specialized subreddits of interest
- daily digests of message boards I follow
- flight price alerts from persistent searches on routes I follow
- account updates via polling over websites like my frequent flyer accounts etc
I also love keyboard macros built into ios and have dozens for commonly used things I type.