Brent Riggs posts a short message based on Scripture every Sunday morning. You can either listen online or simply read the message. Brent gets right to the point and tells it like it is. I like that about him. BTW, he's Abby's daddy (I have "Pray for Abby" on my sidebar) and he's also the editor of Serious Life, a free online Christian magazine.
Although I love to attend church and to worship with others, there are times when it's not possible to do. We are so blessed in America with an abundance of online resources. So take advantage of them! I often go to church and still check out these sites.
Please feel free to share other resources in the comments below. I love to hear about others too. Happy Sunday!