A sad day for a Hacker

So I was gone from my Wii for about 5 days. Once I got back I thought I should play some Animal Crossing: City Folk. I played for awhile and fell asleep. The next day I woke up did my normal routine and thought I should play some more Animal Crossing. I thought I should redo my town so I went to the Homebrew channel. Nothing loaded. I opened up the SD slot to see if my SD card was there. It was gone..... I checked my computer to see if it was there. No it wasn't there either. I looked for an hour but still nothing. I either will have to find my SD card or buy a new one. Anybody know where it might be?