beside vs besides

Q. We need to discover another source of income, beside oil

Is that sentence not correct gramatically or in terms of standard English?
I'd appreciate it if you tell me why.
  • Welshie

    Senior Member
    England, English
    I would have said "besides" here. For me, "beside" is a preposition meaning "next to", whereas "besides" means "other than". For example:

    The bed is beside the table.
    < Previous | Next >