The May League Top 16 invitational post can be found here:
http://forum.lightmare.com.au/index.php?topic=64657.0
Sign-ups for Week 5 are right here:
http://challonge.com/IwPauperWeek5
If at all possible we'll be streaming matches from the May Top 16 live on our twitch channel www.twitch.tv/infinitywarstcg so make sure to check out what's happening!
See you on the battlefield!