I'm interested in learning Clojure. The Getting Started page on Clojure.net is pretty minimal. Is there a good language introduction or tutorial out there? Which would you recommend?
Answer: I have watched the videos on youtube called Intro to Clojure. I don't recommend those. They are a little too brief and don't give a lot of background. Instead, check out the talks by Clojure creator Rich Hickey. I am finding the "for Java developers" version very useful.
The most promising resource for learning Clojure seems to be the Programming Clojure book. It's not released yet, but you can buy a beta PDF of it.
Youtube has a series of videos called "Intro to Clojure". Its more about the language rather than how to program in it but it's good for a basic overview.
http://clojure.blip.tv/ also has a series of screen casts, but I haven't watched any yet. Hopefully someone else has more, I want to teach myself Lisp and Clojure seems like the best at the moment. modern lisp with Java integration drool
Halloway has a blog on Clojure at On Lisp -> Clojure. Looks like good starting point.
There is a comprehensive introduction to Clojure at: http://java.ociweb.com/mark/clojure/article.html
There's a tutorial for beginners by Mark Volkmann that has just been released. It seems very complete: http://ociweb.com/jnb/jnbMar2009.html
I recommend getting the beta PDF of programming clojure, along with referencing http://en.wikibooks.org/wiki/Clojure_Programming/Examples/API_Examples although I haven't looked to see if it's still up to date with the new Lazy changes (latest beta of the pdf book is fully up to date last I'd heard, haven't had time to go through it yet).
It's also a good idea to use SVN and build from ant so you have the latest changes, since pre-1.0 clojure is still a bit of a moving target.
I found this one which looks interesting. Clojure for the Non-Lisp Programmer.
The http://clojure.blip.tv presentations are fantastic and highly recommended. Depending on your background, there is one targeted at Lisp programmers and another targeted at Java programmers. I learned much of what I know about the whole language in 2 days watching all of these videos.
If you are interested in a "building a library" tutorial (using TDD) then I recently published one in an interesting format: http://larrytheliquid.com/2009/03/02/presenting-clojure-with-a-gitorial
http://www.ociweb.com/mark/clojure/article.html is the best (free) one that I have seen so far.
I'd also recommend the irc channel: #clojure on irc.freenode.net. It's a community full of helpful and knowledgeable people. Clojure's author, Rich Hickey, is in most days and will often respond to some of the more difficult questions.
Stuart Halloway has a few great examples on his blog. He's started porting chapters of Practical Common Lisp (PCL) to Clojure. The examples are practical, idepth and very easy to understand. Highly recommended!
You can visit the series page on:
Relevance Blog: PCL -> Clojure
I strongly recommend you watching the peepcode screencast: http://peepcode.com/products/functional-programming-with-clojure
It's not as comprehensive, but much more fun, therefore encouraging.
Craig Andera has recorded an excellent tutorial on Clojure Concurrency
A lot of people have referenced R. Mark Volkmann's great tutorial. However, it has to be said that this tutorial is fairly hard-going (a lot of stuff is covered in a very short space), so you may want to consider it more of a reference.
There is also this wikibook which looks a little more accessible. Also, there has been some work on rewriting Practical Common Lisp (original here) into Clojure available here.
Good luck!
I'd suggest starting with LabRepl, which is an interactive tutorial that you spin up on a local webserver and then start reading and coding. It's being written by Stuart Halloway et al. You can find it on github: http://github.com/relevance/labrepl
I've found the Casting SPELs with Clojure slow-moving and amusing. Then again, I like tutorials that give me stuff to play with instead of giving tons of information.
Fast Track Clojure is a tutorial for people new to Clojure. The aim is to get you writing Clojure code on the fast track. You can find the tutorial here. http://fasttrackclojure.blogspot.com/ Disclojure: I am the author of the tutorials.