B&H Photo Video is not only a great source to buy equipment, but it is a great source of reviews and relevant information about the equipment. I usually just find the category I want, and sort by the "Top Rated" or "Relevance" and typically that will direct you right to the most popular model.

Amazon also has many reviews and has a great system for showing you the most popular and highest reviewed models in each category. Overall I've found the reviews on Amazon to become somewhat dated. If a product has been available for a few years, many times the most popular reviews are from day 1. So they may be lacking up to date comparisons. But if you are aware of this, and look beyond the top rated reviews, many times you will find relevant information.

Personally I enjoy landscape and nature photography, so I like to browse the equipment section of the most recent Outdoor Photography magazine that I receive. I've found that if you are really aware of the market, some of the "new equipment" actually has been out for quite a while and the magazine editors just finally picked up on it. But if you aren't worried about being on the cutting edge(which isn't necessary) then this might turn you on to some new gift ideas or things you didn't even realize you needed.