Selling or Recycling Office Furniture and Equipment

njfan thought this was worth mentioning said

Does anyone have advice on where to recycle or sell used office furniture (e.g. desks, cubicles, chairs)? What about tech items (like servers, network racks, Avaya VoIP phones, etc)? I think the business would like to recoup some of their expenses but if recycling is the single option, they’d prefer not to have to pay for the expense of it having to be carried away.

Local or national resources would be helpful. It’s going to be for multiple offices across the country.