Unable To Establish A Connection

So I've been having trouble connecting to the internets. It started last night and continued this morning. I was finally able to, thank goodness, but I'm not sure how stable it is or how long it'll stay that way. I might not be able to later, I don't know. And this got me to thinking. If I were to lose my connection for good, what would I do? Now I'm ass-u-me(ing) that most of you get your service through a large company. Cox, Comcast, AOL, etc... and really don't don't have to worry about them going under any time soon. I, however, get my service through a small provider called Address. And although I've had it for a few years now, it could very well decide to stop it's service at anytime. The economy isn't very good and small companies are going under all the time, so... Maybe I should start looking for alternatives just in case. I had Netzero at one time but they dropped me because their "unlimited" service wasn't so unlimited after all. I might want to get their info again just to be on the safe side.