You sure to be amazed the way Twitter just went down. Don’t worry, it was deliberate. It was offline for about an hour testerday and there’s another downtime considered for Monday as well. So go further on and organize a list of substitute activities for Monday, in order of significance/ likelihood:

1. Chatter regarding Twitter being down on FriendFeed
2. Gossip propos Twitter being down on Facebook
3. Utter concerning Twitter being down over IM
4. Put down a comment on a blog post about Twitter being down (first this one)
5. Chat about Twitter being down via text message
6. Have a debate about Twitter being down over email
7. Tip us that Twitter is down
8. Inscribe your own blog post about Twitter being down (like this blog post)
9. Chat about Twitter being down on Pownce Plurk
10. Talk about Twitter being down on Identi.ca
11. Converse about Twitter being down internally on Yammer
12. Reflect about Twitter being down
13. Call a real friend to gossip about Twitter being down
14. Tempt a real friend over to have a discussion about Twitter being down
15. Set out

While some other options stirred by commenter are-

1. Compile a tweet using Birdhouse to send out when Twitter comes back [thanks Rash]
2. Bitch about the Twitter coverage here [thanks Raya]
3. Question the timing of the planned maintenance [thanks Katie]
4. Accuse us of being paid to promote Twitter [thanks who? hehe]
5. Find a homing pigeon [thanks Daneil]
6. Talk at a meeting about Twitter being down [thanks Sandra]
7. Speak to Walt Mossberg and Jimmy Wales about Twitter being down [thanks Scoble]
8. Resort to exaggeration [thanks Mitch
9. Compare us to a pubescent boy and Twitter to Scarlett Johanson [thanks Aan Jay]
10. “Losers” [thanks mickey]
11. Fix typos [thanks Whiteley]
12. Update IM status [thanks Nora]
13. Visit this site [thanks you]

Update:  although Twitter is back but you should save the roll for Monday!