Grand National 2009: research horses online

Prepare for the big race at Aintree on Saturday by studying the Grand National 2009 runners and riders online.

Horse racing site At The Races has previewed the chances of all the Grand National runners, from Cloudy Lane to Zabenz.

All 40 horses are included in Racing Post's Grand National sweepstake kit, which is guaranteed to whip up some excitement in the office.

If you want a flutter yourself, it's best to get some advice from those in the know.

BBC presenter Clare Balding has some Grand National tips, as does her colleague Cornelius Lysaght.

Once you've decided which horse to back, use a site that compares online bookmakers to find the best Grand National odds.

When Saturday arrives, you can watch the Grand National live online on the BBC Sport website.

The race, which sees 40 horses jump 30 fences over two-and-a-quarter miles, begins at 1615BST.

Use the iPlayer also to watch re-runs of the race After the internet users can watch the race again as many times as they like on the BBC iPlayer.

Watch Aldaniti win the 1981 Grand National