Here on BLiNC Magazine, signatures take on a slightly different format to what is known as BBCode on the internet. Each software has a slightly different implementation of BBCode and vBulletin uses the one I have for my signature:

Mick Knutson
[URL="http://bit.ly/rYIXlw"]BLiNC Magazine[/URL]

[B]BASE Jumping Mobile App: [/B](iTunes)([URL="http://bit.ly/uMfLJe"]Android[/URL])(Amazon)([URL="http://bit.ly/w4tYb5"]Web-Mobile[/URL])
([URL="http://bit.ly/rMeNZ1"]Mobile Lite[/URL])

[I]Alternatives Native Apps: ([URL="http://bit.ly/sjPkqm"]Tapatalk iTunes[/URL])([URL="http://bit.ly/tuYlht"]Tapatalk Android[/URL])([URL="http://bit.ly/uWgN23"]ForumRunner iTunes[/URL])([URL="http://bit.ly/sMe3x0"]ForumRunner Android[/URL])[/I]

[B][I][URL "http://bit.ly/sgAAhN"]BASER JUMPER ONLY PRIVATE FORUM[/URL][/I][/B]
[I][URL="http://bit.ly/vZ0vdn"]BASE Fatality List[/URL][/I]


I have used bit.ly to shorten the URL's so you can fit more into your signature but the URL's all go to BLiNC Magazine.

Then there is Gossamer Forum that uses a slightly different version, although very subtle...

This is 200 Characters which is the max:
[B][URL "http://bit.ly/rYIXlw"]BASE Jumping Mobile[/URL][/B] ([URL "http://bit.ly/uMfLJe"]Android[/URL])([URL "http://bit.ly/w4tYb5"]Web[/URL])

[URL "http://bit.ly/sgAAhN"]BASER JUMPER ONLY[/URL]
Here is just the posting for the base jumper only forum (http://www.blincmagazine.com/forum/original-base-board/46544-baser-jumper-only-private-forum.html):
[URL "http://bit.ly/sgAAhN"]BASER JUMPER ONLY PRIVATE FORUM[/URL]

Here is just the BFL:
[B][I][URL "http://bit.ly/vZ0vdn"]BASE Fatality List[/URL][/I][/B]
Here is just the Android link:
[B][URL "http://bit.ly/rYIXlw"]BASE Jumping Mobile[/URL][/B] ([URL "http://bit.ly/uMfLJe"]Android[/URL])
Here is the Web-Mobile version of BLiNC:
[B][URL "http://bit.ly/rYIXlw"]BASE Jumping Mobile[/URL][/B] ([URL "http://bit.ly/w4tYb5"]Web[/URL])


The iTunes version of the App is coming out ASAP as all I need to do is compile it and deploy to iTunes.