I'm going to take the advice of my brother and order the book he recommended in a post below, The Starcraft Bible.
Part of the reason why I want to get this is because I know very little about the first version of Starcraft and its expansion, which has been around for a decade. When I watch the games, I sometimes can't tell what's going on (especially when the commentators are speaking in Korean), because while some units are the same, some are very different. The mere look of Starcraft sometimes makes my eyes hurt compared to the graphics of Starcraft 2.
I've been trying to learn more about Starcraft in hopes of gaining more understanding of it as a cultural phenomenon and also so I can enjoy and appreciate the legacies or narratives that follow some players. Nada is supposed to be one of the most consistent SC progamers. Players such as Jaedong and July in their own ways revolutionized the way to play Zerg. Some players who were on the B team for SC1 are in Code S and dominating in SC2. When I first heard the theme song written for Tasteless there were several references to players and matchups in SC1, and I didn't get them so I had to ask my brother what they were all about.
In hopes of getting caught up and also familiar with the basic mechanics of SC1, I've started to watch more and more games, starting with this list of "most unusual progames" that I came across on TeamLiquid.net.