This is the sixth in our series of top products of 2008:

1. Top 10 Semantic Web Products of 2008
2. Top 10 International Products of 2008
3. Top 10 Consumer Web Apps of 2008
4. Top 10 RSS and Syndication Products of 2008
5. Top 10 Mobile Web Products of 2008

Our Criteria

In no order of importance (all three are critical), we looked for three attributes for the top Enterprise web products:

1. Innovation: This is the time for firms that opened up entirely new market categories through disruptive innovation to reap the rewards.
2. Traction: We cannot put a cool new company whose product is just emerging from beta into our top 10. Winners should already have major traction in the market.
3. Longevity: This is a mix of profitability and deep pockets; an ability to outlast the competition.

The market categories that feature in this post are: platforms (with 2 companies making the list), wiki (2), web office (2), CMS 2.0 (1), project collaboration (1), web conferencing (1), and contact networking (1). Note that we didn't consider micro-blogging, RSS or mash-up products, as we consider those to be features rather than products - in the Enterprise market at least.

Drum Roll... and the List

Note: to avoid ranking them (which is impossible because they compete in different markets), the winners aren't in any particular order.

Amazon Web Services (AWS)

Who would have thought that a bookseller could have generated such enthusiasm and loyalty in the developer community? Eons ago, Microsoft won big by winning the hearts and minds of developers. Amazon does that today better than any other company.

Platforms will do well in 2009, though not many will. The platforms market is a race for scale, requiring massively deep pockets. We chose two, but they have lots of very strong competitors breathing down their necks.

Basecamp

37Signals, maker of Basecamp, is a lot of peoples favorite start-up (even its competitors feel obliged to say nice things about the company). The way they do project collaboration is almost as important as what they do. Their "less is more" elegance has become the mantra of developers everywhere. The one issue? It keeps its products separate. You have to choose which one to use. Vendors with suites could take advantage of this.

Confluence (Atlassian)

We are seeing major wiki adoption in the enterprise. It is simply a much easier way to collaborate than by putting lots of complex technology under the general umbrella of the Intranet.

It is hard to pick winners here. The space is crowded. In fact, we picked two for this category (MindTouch is the other). Atlassian seems a safe bet for enterprise, having traction and a good breadth of products. It is also nice that a vendor from the southern-hemisphere (Australia) made the top 10.

DimDim

This is our small-vendor recession play. In a recession, companies travel less, so they use web conferencing more. They also cut whatever budgets they can, and web conferencing isn't spared. DimDim's proposition is incredibly simple: web conferencing for less cost. The one issue? It is still a bit raw, and the company will need deep pockets to satisfy what we expect will be a growing demand.

Google Apps

Google Apps is one of Google's more mature offerings outside of search. It's a huge market, and Google has major traction. The move from PC-based office software to web-based "office tools" accelerated in 2008 and became increasingly mainstream.

The one issue? Google may be spreading itself too thin. Unbelievably, its flagship Gmail is still in beta and suffers from reliability issues, and some modules (such as for spreadsheet) still seem a bit raw compared to those of competitors.