Wittgenstein is known as much for his character as his philosophy, and for those not familiar with his life Tim Madigan’s short introduction is a good place to start.
If you want to get your teeth into some of the philosophical ideas, Mark Jago has written a remarkably clear guide to Wittgenstein’s picture theory of language.
There’s more articles available if you pick up a copy of the magazine or have online access.
If you get a chance to see the magazine itself (a bit difficult to get hold of as many shops don’t carry it) you’ll notice that Philosophy Now is exactly what you’d expect from a philosophy magazine: a bit chaotic, endearingly eccentric and wonderfully intellectual.
Otherwise, you could do much worse than listening to a fantastic edition of BBC Radio 4′s In Our Time that tackled the life and philosophy of Wittgenstein, archived online.