When trying to find real information about a bike manufactures sources are usually worthless. You get the basic tech specs but everything else has to be dug up from forums adn the like. Magazine articles are sometimes useful but the the test they do are no where near as usefull as real owner reports.
Advrider.comAdvrider is a gold mine of information on anything adventure riding related. I find it also to be more balanced that your usual Brand X fan forums. It's usually more about riding than any particular bike and that tends to bring out the more honest down to earth opinions.
Good Threads about the KTM 690 Enduro R on Advrider.com
KTM 690 Enduro owners show off your bike ! - lots of pics to get you in the mood
New and improved KTM690 WUNDERFEST - the MEGA thread on the 690
RTW KTM 690 Enduro - some insights from a RTW trip with 690
RTW with Noah on a KTM 690 - RTW trip report, very good
KTM 690 Enduro R as a semi-daily commuter - thoughs about commuting with the 690
KTM 690 Enduro R Highway Speeds - 690 on the highway
KTM 690 reliability - opinions about the reliability
2012 ktm 690 enduro R owners, any major problems ? - a very usefull problem thread
KTM 690 luggage & rack thread - self explanatory
New KTM 690 Thread Index - even more 690 stuff
KTM 690 Enduro - Can it do Africa? - discussion at Horizons Unlimited, another great site