I

information superhighway

in-state, out-of-state
Acceptable, but consider whether Alabama resident and nonresident would be more precise.

interdisciplinary

Internet

Internet addresses
See E-mail and WWW addresses.

italics
As with any special type style, punctuation follows the style of the word immediately preceding it.

J

Jr., Sr., II, III, etc.
See titles of people.

judgment
Not judgement.