extranet and intranet

There is a lack of consistency in the way the words extranet and intranet are handled.

Do not capitalize extranet or intranet.

• You need a valid user name and password to access our extranet.
• Check the department's intranet for information on training courses.

Use the articles the and an with extranet and intranet.

• The extranet is for all our customers, while the intranet is for staff only.
• An extranet is an intranet that extends access to certain authorized outsiders.

The prepositions on and to are most often used with extranet and intranet.

• The department will make its training information available on the intranet.
• Students will also have access to the extranet next semester.

Note: Your context determines what preposition you should use. Other prepositions besides on and to may be appropriate. For example:

• This works well in intranet and Internet environments.