Samuel Hansen needs your help! He’s currently raising money to create a series of podcasts explaining math to a wide audience. From the linked video, it looks like they will be a lot of fun, and I think it would be a shame if he wasn’t able to make them. He still needs to raise another $4,000 or so in the next six days — every bit helps.
He didn’t ask me to post this; I just think it’s a worthy cause. If you’re unsure of his credentials, you can check out the other mathematical podcasts he’s made in the past.