watch The History Channel, The Science Channel, news, and other educational networks and shows. Try reading online a lot if you dont like reading books. i find that Wikipedia and Googling things that interest you also helps in gaining knowledge.
watch your favorite show and try to identify what the characters do and use in their lives. or you could look up info on your favorite show. you might find interesting topics that could relate to the knowledge youre looking for.
get a map, use GPS or compass, or go online and search your home. it's fun ^_^
if your computer can tell you the weather, then use it. like mine (i got a laptop so i frequently use the Dashboard).
try using online dictionaries.
read newspapers and magazines (like Time or National Geographic).
you can also watch things online
Forums also help a lot. you can probably meet people who have the same interests that you do. but you also meet other people and so you might gain something from reading what they say