There is a great magazine called Runner's World or Running magazine and they have lists every three months on the best running shoes for different kinds of running, including trail running, track running and sprinting. The Nike Lunar Glides are the best.
Trail running shoes have knobby soles that are more rigid than road running shoes. In addition, trail runners prefer garments with wicking action. Look for a retailer that specifically says they carry train running equipment.
The nb minimus consistently maintains a good reputation among runners. Reviews suggest that these shoes have the most minimal and lightweight properties for trail shoes. Irunfar.com describes a selection of shoes within this range.
Runners world is a particularly helpful site, providing good tips on purchasing shoes and equipment as well as developing beginner level running plans.
The best trail running shoes have nylon puncture protection in the sole. Depending on where you are doing your trail running, better shoes will either have crampons or the ability to install them.
Nike is a great brand and their trail shoes are good quality.Nike have their own website where you can search find and order the shoes of your choice.
A regular pair of running shoes should be sufficient for trail running. But, if you are an avid trail runner, then you can find a pair of specific shoes called the Brooks Adrenaline ASR5.
Go to www.runnersworld.com they have alot of information for runners in general.There is trail of the month,videos,and also trail head blogs which has alot of information for you on trail running.Wonderful site for you.
You may find reviews on trail running shoes on the internet or you may find them by asking people. If your visit your local sporting goods shop you may be able to ask about it.
You can purchase trail running shoes with many online and in store retailers. It is best to buy in stores, especially for a first pair, so you can try the shoes on.
This website, the 'Running shoe guru' will show you what kind of shoes are best for trail running and have reviews for you. http://www.runningshoesguru.com/best-trail-running-shoes/
You may go to academy sports, Walmart, payless shoes, Nike, and adidas. There is probably more but that's all I can think of for now. I would suggest academy sports because they have better deals on cheaper name brand shoes.
At www.roadrunnersports.com they have info and access to all the top brands for shoes that runners need. Hope it helps you out some.