Final positions in Montreal:
1. Hamilton (McLaren)
2. Kubica (BMW Sauber)
3. Raikkonen (Ferrari)
4. Alonso (Renault)
5. Rosberg (Williams)
6. Massa (Ferrari)
7. Kovalainen (McLaren)
LATEST ACTION (all times BST)
To get involved, text us on 81111 (UK users only) or contribute to 606
Join the debate on 606
1908: "You have to respect Hamilton, he delivers the goods like it or not."
Jazzert100 on 606
1903: So Hamilton takes pole by a huge six-tenths of a second, while his old rival Renault's Alonso does well to line up alongside Ferrari's world champion Raikkonen in fourth place. Kubica, who crashed badly in Montreal last year, lines up alongside Hamilton in second for BMW Sauber.
1901: The answer is yes! Hamilton puts together a perfect lap to take pole for the second year in a row with a hot lap of 1:17.886.
1900: Robert Kubica snatches pole with 1:18.498. Can Hamilton answer?
1859: Last dash for Raikkonen to take pole and he is pushing for pace through the first two sectors but he cannot overhaul Hamilton.
1858: Ferrari are really struggling over the final sector. Raikkonen runs much quicker than Hamilton in the first two sectors but loses it over the last third as the Finn settles for second.
1856: Alonso makes the most out of the softer tyres as he climbs up to second place behind his old rival Hamilton with a time of 1:18.971.
1853: Hamilton is fastest so far for McLaren and Massa and Raikkonen go fast through the first two sections but cannot do enough to eclipse Hamilton in the final phase. So Hamilton clocks a hot one of 1:18.721 on the harder tyres.
1851: The McLaren and Ferrarris are out early and that's because the track in Montreal is breaking up quite badly now. Coulthard explained how tricky it is because of the debris on the track and before the third session the marshalls are out there desperately sweeping it away.
1850: Good news for football lovers, finally a goal in Euro 2008 as the Czech Republic have scored against Switzerland. But bad news for Mark Webber. He won't take part in the final session after that last-minute crash.
1845: Piquet (Renault), Trulli (Toyota), Coulthard (Red Bull), Nakajima (Williams) and Glock (Toyota) are fail to go through to the final run. And that's the first time Toyota fail to make the third part of qualifying this season.
1844: Oops, Webber looks like he has undone all his good work as he bumps into the wall and it looks like he has damaged his suspension. If that's the case then he won't be running in the top-10 shootout, despite setting the fifth fastest time.
1841: Webber hauls himself up to fourth with an excellent show of pace for Red Bull while Heidfeld gets out of trouble in eighth.
1839: Hamilton looks pretty untouchable at the top, while Massa, Raikkonen, Kubica and Kovalainen line up behind him. At the opposite end of the timesheets, Nakajima, Piquet, Trulli, Coulthard and Heidfeld are in danger.
1835: Massa was pretty nippy through the first sector but he cannot overhaul Hamilton and only succeeds in leap-frogging team-mate Raikkonen for second.
1834: Hamilton is looking good again for McLaren as he goes fastest with a 1:17.034 - that was faster than his leading time from the last session. Kimi Raikkonen closes up in second behind him from Mark Webber.
1830: So, Rosberg goes faster on the harder tyres ahead of Kovalainen, who's on the softer tyre. Jarno Trulli takes a big spin across the track in his Toyota, holding up those behind him who were out on their flyers.
1828: Heikki Kovalainen swings his McLaren out to get the second session under way.
1825: Exasperation in Sport HQ as there are still no goals between Switzerland and the Czech Republic. But what about Jenson Button? Well, he is fairly philosophical after his gearbox failure, saying "I'm last anyway and I didn't get a lap in. It's been a tough weekend."
1821: Thus ends the first session with things not quite going according to plan for Button, who is busying himself back in the Honda garage after dropping out. Also out are Vettel and Bourdais (both Toro Rosso), Fisichella and Sutil (both Force India).
1816: News from the Honda garage. Button is back in the pits and the word is he has terminal gearbox damage so it looks like the Briton will be starting from the back of the grid.
1814: Now then, because of Super Aguri's sad exit from the sport and Vettel's chassis troubles, only four drivers will be eliminated in this first spell. Those in danger at the minute are Jenson Button, Giancarlo Fisichella, Adrian Sutil and Sebastian Bourdais.
1810: A typically white-knuckle lap from Hamilton as he goes fastest with 1:16.909.
1808: Early days for Lewis Hamilton, who goes fifth with his first effort. The Briton is inches away from the wall as he sets out to go even faster.
1806: And the first meaningful time goes to.... Raikkonen, who clocks 1:17.684 on his second flyer.
1804: The first big gun out is Kimi Raikkonen for Ferrari. It's changing all the time at the top of the timesheets now.
1803: Sutil sets the first time of 1:20.785 - but that won't last long.
1801: First man out is Adrian Sutil for Force India - and let's hope he has more luck than he did last time out in Monaco, when he was knocked out of the race by Raikkonen when he was running in fourth. He is followed by Nelson Piquet's Renault.
1800: "Ferrari are gonna lock out the front row. At least one BMW on the second."
Slater582 on 606
1758: Good news after the buckets of rain on Friday, conditions are officially fine and dry in Montreal.
1752: Former Formula One champion Jacques Villeneuve has been spotted in the Montreal paddock fuelling rumours he might want to get back behind the wheel. But the Canadian is just checking out the track which is named after his late father and says he is busy working at his restaurant.
1745: Bad news for Sebastian Vettel. His crash into the wall in final practice means he won't take part in qualifying. The German says the chassis is too badly damaged and so the team will work on it overnight and he'll start the race from the pit lane.
1740: "Good luck Lewis and Kimi I'm with my shadow as agreed."
Anonymous via text A rather sinister edge to that text. What on earth does it mean?
1738: "Qualifying preditions: Pole - Hamilton, 2nd - Massa, 3rd - Raikkonen."
Stoppenfloppen on 606
1730: The rest of BBC Sport HQ might be gripped with the opening match of Euro 2008 but those of us in the know, um, know the real sporting action is happening in Canada, right?
Who will take pole for Sunday's Canadian Grand Prix at the Circuit Gilles Villeneuve will be settled in the next hour or so, but predictions aren't that easy.
Lewis Hamilton claimed pole in 2007 and then went on to his maiden Grand Prix win in Montreal, and the Briton was fastest for McLaren in wet conditions during Friday's second practice.
Ferrari's Felipe Massa was fastest first thing on Friday and was looking quick in the afternoon too before his car suffered a "blackout" and he had to abort his session.
And then Williams went and sprung a surprise before qualifying with Nico Rosberg fastest by 0.034 seconds ahead of Ferrari's world champion Kimi Raikkonen.
Let me know how you think qualifying will go - and what that might mean for the race - via text on 81111 or on 606.
Join the debate on 606
Final practice times for the Canadian Grand Prix:
1. Nico Rosberg (Germany) Williams 1:16.555
2. Kimi Raikkonen (Finland) Ferrari 1:16.589
3. Lewis Hamilton (Britain) McLaren - Mercedes 1:16.725
4. Felipe Massa (Brazil) Ferrari 1:16.787
5. Kazuki Nakajima (Japan) Williams 1:16.898
6. Jarno Trulli (Italy) Toyota 1:16.946
7. Heikki Kovalainen (Finland) McLaren - Mercedes 1:16.952
8. Nelson Piquet (Brazil) Renault 1:17.060
9. Mark Webber (Australia) Red Bull - Renault 1:17.062
10. Sebastian Vettel (Germany) Toro Rosso - Ferrari 1:17.085
11. Robert Kubica (Poland) BMW Sauber 1:17.109
12. Sebastien Bourdais (France) Toro Rosso - Ferrari 1:17.282
13. David Coulthard (Britain) Red Bull - Renault 1:17.322
14. Rubens Barrichello (Brazil) Honda 1:17.557
15. Timo Glock (Germany) Toyota 1:17.557
16. Giancarlo Fisichella (Italy) Force India - Ferrari 1:17.608
17. Fernando Alonso (Spain) Renault 1:17.683
18. Nick Heidfeld (Germany) BMW Sauber 1:17.766
19. Jenson Button (Britain) Honda 1:18.178
20. Adrian Sutil (Germany) Force India - Ferrari 1:18.424