Gets a blog’s numeric ID from its URL.

Gets the permalink for a post on another blog.

Gets a blog post from any site on the network.

Gets the current network.

Gets a user’s most recent post.

Gets the network’s site and user counts.

Returns the upload quota for the current blog.

Returns the space used by the current site.

Retrieves a list of reserved site on a sub-directory Multisite installation.

Determines if there is any upload space left in the current blog’s quota.