I concur with u6crash about the empty corkboard as you scroll down.
Maybe showing fewer posts or appending them would help.
... or filling the sidebar with other random stuff.
I also like the search function, but it isn't obvious. I'd add the words "Click here to" in the field.
Finally.. and this is a bit niggly... I love the bulletin board thing you have going, but the embossed rad looking header doesn't seem to logically go with it. I can get my head around the plaster textured wall that he cork board is on, but I would probably go with some other graphic that would be on the same wall as a cork board, i.e. marker writing, or a note pasted up with masking tape or something. What you have is a cool effect, but to me, it just doesn't match the rest of the effort.