These are SPINdexes, not indexes, and they are spreading a type of index pollution that one should avoid.

FORBES: ETF Industry Says Old and Dumb Buy Mutual Funds

So far, according to the CDC, this year's vaccine matches well with the most predominant type of flu spreading in the United States, but is less well matched to the No. 2 type of virus.

CNN: Your top 10 flu questions answered

So far, according to the CDC, this year's North American vaccine matches well with the most predominant type of flu spreading in the United States, but is less well matched to the No. 2 type of virus.

CNN: Had a flu shot? You'll be OK -- maybe

Enthusiasts think direct democracy is spreading because the traditional type is ailing.

ECONOMIST: If you thought Germany did not do referendums, think again

It is even spreading to other countries as other cultures start to take part in a type of composition long considered purely Japanese.

CNN: Cell phone stories writing new chapter in print publishing