Having received the Tour editions of Cycle Sport and ProCycling recently was noticeable that the points systems were listed as unpublished at time of going to press etc.
The TdF reglement, though not immediately obvious on the official site, are now up in the cloud somewhere - and the points sytems are on pages 38 & 39 of
http://www.letour.fr/2011/TDF/COURSE/docs/reglement.pdf
Green Jersey Points
Flat stages (Stages 1,3,4,5,6,7,10,11,15,21)
45-35-30-26-22-20-18-16-14-12-10-8-6-4-2 (15 riders score)
(last year - 35-30-26-24-22-20-19-18-17-16-15-14-13-12-11-10-9-8-7-6-5-4-3-2-1 for 25 riders)
Medium Mountain (Stages 8,9,16)
30-25-22-19-17-15-13-11-9-7-6-5-4-3-2 (15)
(ly - 25-22-20-18-16-15-14-13-12-11-10-9-8-7-6-5-4-3-2-1 for 20 riders)
Intermediate Sprint
20,17,15,13,11,10,9,8,7,6,5,4,3,2,1 (15)
(Not listed points for high mountains and time trial stages - but they are in the link)
Polka Dot Points
HC - 20,16,12,8,4,2 (6 riders) - points doubled for mountain finishes on stages 12 (luz-a),14 (p de beille),18 (galibier) ,19 (the alpe)
(last year- 20-18-16-14-12-10-8-7-6-5 for 10 riders)
1st - 10,8,6,4,2,1 (6)
(ly - 15-13-11-9-8-7-6-5 for 8 riders)
2nd - 5,3,2,1 (4)
(ly - 10-9-8-7-6-5) (Points doubled last year for any HC, 1, 2 that was the last pass of the day)
3rd - 2,1
(ly - 4-3-2-1)
4th - 1 point to the first rider over
(ly - 3,2,1)