The Deep Web

Please Note: The following resource evaluations are based off "Using the Deep Web to Find SaaS Growth Statistics"

Google Scholar

Access: http://scholar.google.com
Frequency: Once
Information: Google Scholar tries to search the Deep Web (scholarly journals and other databases) for information. However, Google Scholar does not provide us with where they search.
Query: (intitle:"software as a service" growth) or (intitle:"software as a service" adoption)
Evaluation: Google Scholar didn't turn out so well and I am hoping this isn't the case for my next two searches. The first ten results did not yield anything. Zilch. I found some really good information on How SaaS is Delivered, The User Experience of SaaS Apps, and Pricing Models for SaaS. But nothing on what I was looking for. Score: 0/10
Misc: I cannot believe Google supports this product. They can hide behind the "Beta" excuse all they want, but Scholar is an utter failure.

Turbo10

Access: http://turbo10.com
Frequency: Once
Information: Turbo10 is a very straightforward search tool that searches "The Deep Web". It doesn't explain where and what it searches, but the goal is to find information that exists within databases or subscription sites.
Query: SaaS Adoption, SaaS Growth (Cannot directly link to results)
Evaluation: Unfortunately, I received only one relevant result from Turbo10 (for both queries), but it was also the first result for both. Nevertheless, that one report was extremely informative. I recommend trying Turbo10 with some other queries. Score: 6/10
Misc: N/A

BNet

Access: http://www.bnet.com
Frequency: Once
Information: Search engine that browses a library of business related journals and sites. It provides search results with both free and premium content. Great general resource for business information even outside of SaaS.
Query: software as a service growth, software as a service adoption, saas growth
Evaluation: The results fell short of my expectations as the first, second, and third queries yielded nothing on SaaS. Score: 3/10
Misc: These results must be taken with a grain of salt. SaaS information does not really cater to what BNet provides. BNet focuses a lot more on strategy, management, and other "business operations" information.

Forrester

Access: http://www.forrester.com
Frequency: Four times
Information: Forrester is one of the world's leading IT research companies. They have thousands of research reports about the IT industry and trends.
Query: "software as a service", "saas", "growth" OR "adoption"
Evaluation: I really liked Forrester's user interface, browsing options, and of course, its data. The information I retrieved was amazing, very precise, and interesting. Highly recommend checking out Forrester's database if you have access. Score: 9/10
Misc: Forrester lets you combine different keywords so my results incorporated any research that related to software-as-a-service or SaaS and had either growth or adoption as a keyword.

Gartner

Access: http://www.gartner.com
Frequency: Four times
Information: Forrester is one of the world's leading IT research companies. They have thousands of research reports about the IT industry and trends.
Query: "software as a service", "saas", "growth" OR "adoption"
Evaluation: Gartner has great information, especially on SaaS, but could have a better user interface and browsing experience. Highly recommended. Score: 9/10
Misc: There is actually a Software-as-a-Service sub-category deep within their Technology/Software research! That was awesome.