There are many ways of understanding why art is important. Understanding what art is for is one great way of understanding why art is so important.
The web can be a great place to find inspiration in the form of great art and artists but the signal to noise ratio, or the amount of quality information versus the amount of trash, can be quite high and it takes a lot of time to trawl through the trash to find the gems. I have way too much free time on my hands and have dug through the trash and found some great free art magazines.
Browsing the web for inspiration is like dumpster diving, you have to trawl through a bunch of trash to find the good stuff.