ancillary - ANS-sill-AIRY - providing support for somebody or something
Example: "NPR suggests that for ancillary information regarding most asked Q&As on swine flu, go to NPR.org
As a starter: and as a former teacher in English, I hope to add to reader's vocabulary by presenting a word a day in simple terms that anyone can understand - from current use in publications, radio,TV, etc. Remember: use a new word three times in a day and it's yours forever!