Are charity posts allowed on the forum e.g. Just Giving etc??

[amines2058]

Probably one for the mods here, but in a few weeks time I am participating in a 40 mile charity cycle ride in aid of Macmillan Cancer Research.
What are the rules and etiquette regarding the posting of links to my Just Giving page? I do not care if no one donates but I thought there is no harm in asking, as the more cash I can get the better it is for such a worthy cause.
I could not see anything relating to this in the forum rules thread?
I completely understand if this is not permitted.

[Richmond Clements]

Go for it.

[amines2058]

Many Thanks Richard! I will chuck it into the off topic thread as not sure where else it would go. Please feel free to move it if this is not the correct place!
Thanks again!