Most of the time, people who write reviews just write based on first glance impressions. It's not like they have used the stuff for a while and are posting their reactions. No. They usually just open a box, play around for a few minutes, and write a "review". It's useless. Same goes for a lot of software reviews. They install, click around for a minute, then write a review regurgitating the same info listed on the website. Nothing substantial at all. Again, useless.
-superboyac
That's a pet peeve of mine. It's rampant in consumer electronics.
There are some good sites that are trustworthy though. DPReview. Tom's Hardware. Ken Rockwell. etc. etc. They really put stuff through the paces. However, you need to read more than 1 review to understand where they are coming from. e.g. Ken Rockwell can be hyper-critical at times, so you need to know that.
If you're not turning up decent results, often times you're just looking in the wrong places. There are times though that the information just is NOT out there. At all. Sometimes you need to be indirect in your searching.
Here's an example... I'm currently doing iPhone development with MonoTouch. It is pretty new and the developer community isn't very large, so there isn't a huge amount of resources like there is for general C# development. As such, I can't find answers to problems at all. e.g. I spent more than a day farting around with bugs that are literally trivial to solve if you have 1 tiny piece of information... BUT... I can search for information in Objective-C and Xcode. There are some significant differences, but if I'm able to fill in enough blanks there, then my searches for information in Objective-C are good enough, albeit time-consuming.
For a concrete example, I was having problems getting information from an MPMediaItem because there wasn't sufficient information on it available, and the Objective-C examples weren't helping much until I filled in some blanks and experimented.
Details here on MPMediaItem in MonoTouch. It's simple enough once I filled in a blank.
For a different software example, if you need information on ACME Archiver and can't find it, then maybe information on WinZip or WinRar might fill in enough of the blanks.
Anyways, just one search strategy that I've had some degree of success with.