Affiliate Marketing Secrets

We don’t consider ourselves a for-profit business, we’re just a couple of website operators trying to spread a positive message in the music/entertainment industry. We also share media from user submissions ans drive traffic to affiliated websites by live streaming events. Was wondering how to incorporate as we do need to take on investments and sales from ad space, and pay appropriate taxes when it is due. We also distribute promotional materials like t-shirts at our own expense, and want to put those funds into a business checking account.