What are rankings?

Some articles on rankings, ranking:

Oregon State Beavers Wrestling - Team & Individual Rankings (updated 19 Dec, 2012)
... NCAA Team Rankings NWCA (Dual Ranking) 10 Intermat (Tournament Ranking) 20 NCAA Individual Rankings Weight Wrestler Int D1 AWN 125 Joey Palmer NR NR NR 133 Drew Van Anrooy NR NR NR 141 Michael Mangrum 9. 8 ...
Australia National Rugby Union Team - Record - Overall
... IRB World Rankings Top 25 Rankings as of 26 November 2012 Rank Change* Team Points 1 New Zealand 92.91 2 South Africa 86.94 3 Australia 86.31 4 France 85.07 5 ... When the World Rankings were introduced by the IRB in 2003 Australia were ranked fourth ... Since then, the highest ranking Australia has achieved is second, and the lowest is fifth ...
World's Most Livable Cities
... Liveability rankings are designed for use by employers assigning hardship allowances as part of job relocation ... There have been numerous arguments over the expansion of livability rankings for other purposes ... However, the annual city rankings attract extensive media coverage, are a popular topic of discussion and have attracted the attention of even the White House ...
2000 ATP Tour - ATP Rankings
... These are the ATP Rankings of the top twenty singles players, doubles players, and the top ten doubles teams on the ATP Tour, at the end of the 1999 ATP Tour, and of the 2000 season, with number of rankings points ...