Linkage, generally means "the manner or style of being united", and can refer to:

• Genetic linkage
• Linkage (mechanical)
• Linkage (policy)
• Linkage (linguistics)

• Linkage is also a commonly used phrase in most instant message programs used to request a URL or link to a web location. It is used on some websites in place of a "link to us" (or similar) text. See hyperlink
  • Also see webpage and web browser