Lazy Prime Sieve by @gfrlog (Space-efficient lazy prime generation in Clojure) (here, via @cemerick) -- A good read if you want to know more about using (and creating) lazy sequences while leveraging their power.
Reminder: clojure-contrib is deprecated, look to github.com/clojure to find the new library you actually want (via @abedra) -- All of it? Deprecated? I should read the mailing list more often...
Using Common #Lisp at work, method 42: Tell your boss "I'm using a variant of Clojure, that hot new language you're hearing so much about." (via @xach) -- Not so long ago we were selling clojure to managers by saying it was a java concurrency library... time flies!
Lispers know the value of everything, but the cost of nothing (here, via @swannodette) -- A friendly reminder that you can write fast code in Clojure, just not as pretty and cool as you usually write it.