The Offical Perl 5 Wiki at the perl foundation now has 899 pages, many of them are very good, and there is a steady if slow stream of improvements every week.
A while a go I cheerleaded it a bit and said we could reach 1000 pages - since then we've had about 115 pages added, and about 10 times as many updates - which is pretty good.
But there is still a lot of room for improvement - see the Most Wanted pages, or look at pages you're interested and see if there are missing links, content, mistakes or pages you could add
