follow-up (from 2010) : do you still shoot slide film with your M

Not any more - my Ms live on a steady diet of b'n'w now that I finally have a digital SLR with which I am happy and which takes care of small-format colour photography. Slide film is reserved for medium format.

Project slides?.....Not for nearly a decade. Use slide film?....Absolutely!
My wife is an artist who's work is represented by galleries in Seattle and Santa Fe. Having color accurate archival copies of her paintings that have long since sold to collectors is very important. Not only do slides represent the best archival option, but they are a chronological resource that can be effortlessly viewed and understood as her work progresses.
No corrupted files. No outdated formats. No retreval problems.
Everytime a digital file is read by ANY software the color and contrast is altered. Sending a file via email has that file read many times. When there is a question regarding color or contrast by a client, the gallery can always refer to one of the slides made prior to the painting leaving her studio. Accurate prints are also available from scans of those same slides. Fuji Provia with cross polarization and color accurate strobes are the method.
Incidentaly, I always have an M7 loaded with Velvia. I love the quality and feel.

I expect E-6 will go the way of Kodachrome within three years. Kodak is down to E100G and E100VS. Fuji has dropped Astia 100 (completely) and Provia 100F (down to 120 only), leaving only Provia 400X, Velvia 50, Velvia 100, and Velvia 100F.
A&I is shutting down their E-6 line. It wasn't long after they shut down their K-14 K-Lab that Kodachrome was dead.

Not a lot, but now and again.

I do not know of anyone who processes Cibachrome in Canada - I am told it contravenes health and safety by the lab I used to use. I still shoot lots of slide film but only occasionally project (I do get them mounted though - but only 35mm - medium format I just cut). I am less pessimistic than John on E-6 and think it will survive although we will have limited film choice, limited suppliers and limited labs. If you look at Kodak's results the revenue of their film division has shown only small declines over the last two years and is their only profitable segment!. I also believe that film cameras sales have shown a revival in recent times. I suspect just like the LP 35mm film (including slide film) will become a small but sustainable and profitable niche business for some suppliers.
I do scan most of my slide images these days with either my Nikon 9000 or 5000 - the fact that both of these machines can be sold used for about twice what I paid new suggests that there is still life in the film market.

I only use slide film in any of my 35mm cameras. However I never project them, heat can damage slides and setting up all the paraphenalia is too time consuming. IMHO the only way to view slides is using a good hand held slide viewer in natural light. You get an image larger than most screens would give and if you own several you can pass them around a group of people and each can look for as little or as long as desired. Many have adjustable eyepieces. Look on EBay for Zadiix Royal Deluxe. Pana Vue has some good little ones if you can use s fixed focus ones (young eyes).

Not any more. Stopped in 2009. May restart one day, but I suspect there won't be much left to shoot when I do.

Philipp, I completely agree with you : there is still life (and so much pleasure and so much interest) in the film market. But with almost nobody buiding scanners anymore, how will we scan when our scanners die ?
John, I hope you are wrong ;-)
Charles, YES, I had forgotten this : but I often happen to look at my slides with my Leica Loupe. Wonderful, but a selfish pleasure. And I need to be able to print.

Long live E6 !

Yes, I'm still shooting slide film with M & other rangefinders . . . and SLRs. There are plenty of good scanners on the market and there are labs that scan etc. Still a viable tool & format in my opinion.