Abrir enlace en nueva pestaña

Gracias a: lawebdelprogramador.com

Para ello, utiliza el tag target...

<a href="pagina.html" target="_blank">abrir en una nueva ventana o pestaña</a>

Puedes poner varios valores:
_blank Opens the linked document in a new window or tab
_self Opens the linked document in the same frame as it was clicked (this is default)
_parent Opens the linked document in the parent frame
_top Opens the linked document in the full body of the window
framename Opens the linked document in a named frame