Tweets actions:
"f" to favorite a tweet
"r" to reply to a tweet
"t" to retweet
"m" to send a direct message
"n" to create a new tweet
"Enter" to see tweet details (you must use navigate to shortcut "j" first before using this shortcut)

Navigation shortcuts:
"j" to go to the next tweet on homepage or space bar to page down
"k" to go to the previous tweet
"/" to search
"." to load new tweets

Timelines shortcut
"g" then "h" to go home
"g" then "c" to go to the Connect page
"g" then "m" to go to your messages
"g" then "p" to go to your profile
"g" then "f" to go to your favorites
"g" then "m" to go to your direct messages
"g" then "u" to search for any user's timeline

you can also get more at http://teelinks..com