Dota 2 Introduction to the Map, Timings & Basics

Rune spawning: 0:00 then every 2 minutes at one of two locations if there isn't already a rune on the map.
Neutral spawning: 0:30 then every minute on the x:00
Courier speed boost: 50% for 20 seconds. 40 second cooldown. (~50% uptime)
Creep pulling: 0:15 to pull creeps, 0:52 to stack creeps. Use the medium camp closest to your bottom lane tower as radiant or top lane as dire.

Jungling map from Ded Gaming

Understanding tower agro:

Stacking creeps, pulling creeps, ward blocking guide

Tier lists:

July Competitive Tier List
ProTune Gaming July Tier List

Great article on Character Encodings

The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets (No Excuses!)