Watching the Pros: Tips from GOM (GSL)

• Scout EVERY base location at around the 30, 50 and 80 food marks.  Hidden expansions will put you behind, and you'll wonder why.
• When facing Siege tanks, spread your units out.  A big round group of anything will get demolished by siege tanks, whereas a long line still gets you the concave you need while minimizing splash.
• There is no reason to tech too fast.  A safer play will win you more games.
• When behind, expand in a remote location.  The gold bases are especially good - even if you can't hold them and they get destroyed, they make up their initial cost very quickly.
• When ahead, avoid the temptation for a final battle.  Get more ahead by taking another base and securing your own against drops, harassment by air units, etc.  Hold key areas of the map and go for map control / containment.