Just in time for Christmas, the RNC has a gift for political junkies: a comprehensive document* that explains how each state (and territory) will award its delegates through the Republican presidential primaries and caucuses.
It's more than a little complicated, but it's important because winning delegates--not states, not the popular vote--is what ultimately matters. The GOP nominee will be the person who gets the votes of 1,144 delegates (that's 50% +1 of the total number of delegates) at the Republican National Convention in Tampa next August.
There's no real uniformity to delegate allocation. New Hampshire, for example, will award its 12 delegates proportionally based on the statewide popular vote. Florida, on the other hand, will award all 50 of its delegates to highest vote-getter in the state. Still other states have a hybrid system--awarding some delegates based on the congressional district vote (either proportionally or "winner-take-all") and other delegates based on the statewide vote (either proportionally or "winner-take-all"). Some states have popular-vote thresholds that candidates must clear in order to be awarded any delegates. Like I said, it's all a little confusing.
*If you want even more details, check out The Green Papers.