legal question to my taken photos

I am an amateur with no intent on using my photos commercially so far.

I shot a F1 GP weekend.

I shot while being on the grandstands with my purchased tickets, as well as directly in the pitlane after getting access on friday evening (without an official permission).

I would like to share these photographs with friends and posting them on a website.

What legal concerns would I have to take into account?

Do I have the full right over my taken photographs.

Can one point me to an informative weblink regarding basic legal knowledge concerning these questions?

Would it be possible for me, to use these photographs commercially?

Thanks for your input,

menos