Many prominent golf companies and pro tour players have taken to Twitter to talk about their equipment. Here is a round-up of some of the most interesting golf equipment-related Twitter entries from the week of Sept. 15-21, featuring Tiger Woods, Ian Poulter, Anna Nordqvist and more:
Kevin Burns Golf
@kevinburnsgolf Each of our putters is custom built with tungsten weights. The weight is determined by the length of the putter. Part of our custom program.
@SeeMorePutters Owner - Jim Grundberg heads back to Burlington, IA (boyhood hometown) for Golf Week Conference Challenge event -... Click here to see photo 
(Note: @Titleist sent out several updates from a company video shoot in Atlanta today. Here are the highlights, listed in chronological order:
@Titleist And our TV shoot in Atlanta begins... up first at 7 am - Geoff Ogilvy Click here to see photo 
@Titleist Geoff Ogilvy's been hard at work for the last couple hours... Click here to see photo  On deck: Michael Sim
@Titleist Michael Sim just chipped in on the first take. He is now 1-under for the TV shoot Click here to see photo 
@IanJamesPoulter Friends, massive Spring/Summer sale on at www.ijpdesign.com  and up to 70% off clearance. Some amazing savings to be had whilst stocks last!!
@Oliver_Wilson “@LeChizzers: how often does your average pro practice then?” Not enough or they wouldn't be average! Serious note, impossible to answer.
@BillyHo_Golf Out early doing a putting session before lunch.
@strommiegolf Love the new putter!! Red line for red circles!! Click here to see photo 
@ray_matthew Click here to see photo  Odyssey Black Series Tour Designs Milled 2-Ball Blade
@VokeyWedges We feel getting fit for wedges is as important as driver or irons. Find out more about Vokey's fitting methodology here: Click here to read more 
@nikegolf Behind the scenes of the AK interview at the Oven Click here to see photo 
@nikegolf Nike Athlete Lucas Glover worked with his trainer this morning before heading to The Oven. Click here to see photo 
@FootJoy Follow @FootJoy, win these beauties signed by @IanJamesPoulter. One FJ follower randomly chosen Thurs 9/23. Click here to see photo 
@WilsonGolf Click here to see photo  - I'm here in the Wilson UK office checking things out! Sweet new office for Amersports UK!
@WilsonGolf WOW! Impressive! Great pic! @ifavre @WilsonGolf My favorite golf ball but stacking 3 of them? Impressive! Click here to see photo 
@NicoleHage So my aunt has joined me in NYC-we r on the same floor and when I went to her rm we were so excited to see each other and were making a ton
@NicoleHage Of noise--the neighbor across the hall comes out and its Alonzo Mourning! (Who I didn't know it was him until we chatted for a bit)
@NicoleHage I had my clubs w me so we talked about golf and gave him a quick lesson in the hall!
@ANordqvist Had a great time with my friends at @PingTour in Phoenix today! Got some good work done with my clubs and my putting - thank you guys! :)
@Oliver_Wilson @McIlroyRory Yeah but can you cook & putt at the same time? Click here to see photo 
@McIlroyRory Nice little evening putting session! Click here to see photo 
@nikegolf Nike Athlete Lucas Glover crushing some drives for the high speed camera today at The Oven Click here to see photo 
@PingTour It's Anna Nordqvist! Here she is tinkering with loft in our putting laboratory. Click here to see photo 
@PingTour Here is @ANordqvist trying out a few different driver options today. Click here to see photo 
@nikegolf 11 year Nike Athlete @TrevorImmelman talking about the Nike products he uses today at The Oven Click here for more 
@nikegolf Nike Golf Athlete @Paul_Casey working some drivers today at The Oven! Click here to see photo 
@VokeyWedges We currently have a BV Wings staff towel 24 x 48 (very large) available in the Vokey Store but are working on a new one for you guys!
@ClevelandGolf You have a gap yardage, do you muscle a Gap Wedge or go with a controlled Pitching Wedge?
@Titleist New video: @BradFaxon explains how learning to read the grain can help you putt better. Click here to see video 
@VokeyWedges Check out this video of Vokey Team wedge guru Aaron Dill stamping @BradFaxon's wedges on the Tour Van: Click here to see video 
@VokeyWedges Check out our newest WedgeWorks Exclusive lineup-- Vokey TVD C-C in Oil Can Zero finish! Click here to see photo 
@WilsonGolf We've posted some pics on our FB of the new 2011 Equipment! Check it out! Click here to see photo 
@nikegolf Nike Athlete @suzannpettersen working out this morning before heading to The Oven to shoot some Nike Golf ads! Click here to see photo 
@TitleistEurope Titleist Tour Technicians turn to Lumberjacks! Click here to see photo 
@VokeyWedges WedgeWorks Exclusive C-C's are here! Bright Brushed Chrome and the new Oil Can Zero now available Click here to see photo 
(Note: Tiger Woods took questions and gave answers via the @nikegolf Twitter account. Here are some equipment-related highlights – note that his answers are posted first, followed by the submitted questions:
@nikegolf TW: I would try them both out RT @pavlock25: @nikegolf what do you recommend for a 4 handicap the slipt cavity VR irons or the TW Blades
@nikegolf TW: I don't practice as much as I use to but I am often thinking about it. RT @CraigVogt: @nikegolf TW - How much do you practice?
@nikegolf TW:Loft is your friend,use as much as you can without spinning the ball too much RT @hearthop67:@nikegolf what is a good loft for ur driver?
@nikegolf TW: Zero RT @bluntman42: @nikegolf Tiger!!! How much offset is on your irons???
@nikegolf TW: I have played the same loft, lie, length of club & shaft since I was 13 RT @fairwaystevie: @nikegolf tiger: are you irons standard loft?
@nikegolf TW: Yes about 10 years ago, a 4-iron, I shot a 76. RT @mattybo24: @nikegolf Tiger, Have you ever played an entire round with only 1 club?
@nikegolf TW: As of right now, no. RT @waggleroom: @nikegolf Tiger, Any changes to your equipment in response to working with Sean Foley?
@nikegolf TW: Backup putter, wedges & driver. RT @anthonylockett: @nikegolf how many back up sets of clubs do you bring when your in a tournament?
@nikegolf TW: Hybrids are great for helping players get the ball up in the air. RT @hjlow: @nikegolf what is tiger's opinion on hybrids?