You can subscribe to anybody's Twitter feed in Awasu:
There's an RSS icon labeled "RSS feed of [twitter_user_ID] tweets" midway down the the right side of the page, right underneath the "Following" list.
Also, you can copy the URL of this link and change the last characters from ".rss" to ".atom" to receive the feed in ATOM format which add some additional data such as the url to the tweeter's picture.
Twitter search feeds:
You can also create one or more twitter search feeds by using this syntax:
(replace "space_delimited_search_terms" with your search terms
http://search.twitter.com/search.rss?q= ... arch_terms
(RSS) or http://search.twitter.com/search.atom?q ... arch_terms
You can subscribe to the 20 most recent message's from the Twitter accounts that you are following:
(RSS) or http://twitter.com/statuses/friends_timeline.atom
(You'll need to enter your Twitter user ID and password for this to work
You can ask for as many as 250 tweets in a single request by adding a count parameter:
twitter_user_ID:twitter_password http://twitter.com/statuses/friends_tim ... ?count=250
(RSS) or http://twitter.com/statuses/friends_tim ... ?count=250
Twitter Public Timeline:
You can also subscribe to the twitter public timeline (eveybody's tweets) like this
(RSS) or http://twitter.com/statuses/public_timeline.atom
The full Twitter API is here: http://apiwiki.twitter.com/Getting-Started
Read it Later
I'm sure Awasu could work with Read it Later. They have Bookmarklets
They also have an API
but once again I'd have to sign up with them and I'm a little too busy for that right now.
I do not work for Awasu, I'm just a happy Awasu user whose trying to provide some help. I'm sure Awasu could work with Read it Later from a technical standpoint, but I'don't have enough free time to jump through all the hoops that Read it Later has in place.