Wikipedia

Wikipedia links to Wikia (Wikipedia has an abundance of Interwiki links to Wikia).

Wikipedia interwiki map

Wikia        http://www.wikia.com/wiki/c:$1
WikiaSite    http://www.wikia.com/wiki/c:$1
Wikicity     http://www.wikia.com/wiki/c:$1
CentralWikia http://www.wikia.com/wiki/$1
Wikicities   http://www.wikia.com/wiki/$1

Wikipedia to Wikia

5 ways to link to a specific page on a generic Wikia wiki

[[Wikia:requests:User:Splarka]]
[[WikiaSite:requests:User:Splarka]]
[[Wikicity:requests:User:Splarka]]
[[CentralWikia:c:requests:User:Splarka]]
[[Wikicities:c:requests:User:Splarka]]

5 ways to link to a generic Wikia wiki

[[Wikia:requests]]
[[WikiaSite:requests]]
[[Wikicity:requests]]
[[CentralWikia:c:requests]]
[[Wikicities:c:requests]]

2 ways to link to a page on Central Wikia

[[CentralWikia:User:Splarka]]
[[Wikicities:User:Splarka]]

5 ways to link to Central Wikia

[[CentralWikia:]]
[[Wikicities:]]
[[Wikia:www]]
[[WikiaSite:www]]
[[Wikicity:www]]

Wikia

Wikia links to Wikia and Wikipedia.

Wikia interwiki map

Wikicities http://www.wikia.com/wiki/$1
Wikia      http://www.wikia.com/wiki/$1
w          http://www.wikia.com/wiki/$1

Wikia Central to Wikia

2 ways to link to a specific page on a generic Wikia wiki

[[Wikicities:c:requests:User:Splarka]]*
[[W:c:requests:User:Splarka]]*

*These are technically double-interwikis, but are required to link to a specific page

1 way to link to a generic Wikia wiki

[[c:requests]]
[[Wikicities:c:requests]]*
[[W:c:requests]]*

*These are technically double-interwikis, and don't really count

Wikia to Wikia Central

3 ways to link to a specific page on Central Wikia

[[Wikicities:User:Splarka]]
[[Wikia:User:Splarka]]
[[W:User:Splarka]]

3 ways to link to Central Wikia

[[Wikicities:]]
[[Wikia:]]
[[W:]]

Wikia to Wikia

Note that all these require a 'bounce' off the Central Wikia. Some wikia have direct interwiki links, like Furry: for wikifur.

3 ways to link to a specific page on a generic Wikia wiki

[[Wikicities:c:requests:User:Splarka]]
[[Wikia:c:requests:User:Splarka]]
[[W:c:requests:User:Splarka]]

2 ways to link to a generic Wikia wiki

[[Wikicities:c:requests]]
[[Wikia:c:requests]]
[[W:c:requests]]

Wikia and Wikia Central to Wikipedia

1 way to link to a specific page on Wikipedia

[[Wikipedia:User:Splarka]]

1 way to link to Wikipedia

[[Wikipedia:]]

Wikia and Wikia Central to other Wikipedia languages

1 way to link to a specific page on other Wikipedia languages

Replace lang name with the language. For ex, es or pt, etc.

[[Wikipedia:lang name:User:Balistic Pve]]

1 way to link to a specific page on other Wikipedia languages

Replace lang name with the language. For ex, es or pt, etc.

[[Wikipedia:lang name:Main Page]]