For months we’ve been watching Google experiment with their Auto-suggest algorithm and add it to multiple search services they run (including Google News, image search, etc). Thus, apart from Google Suggest, there are other Search Suggestions using different keyword databases which makes each separate Suggestion tool worth a special look.
Here are the main Google Search Auto-Suggest sources and how they are different from one another.
1. Google News Suggest
Google News Suggest was launched back in 2009. It is an invaluable tool for search marketers. It could be surpassed only if Twitter had an auto-suggestion algorithm (which it doesn’t).
The awesome thing about Google News Suggest is that it would suggest hot trends to you, so you may know what’s hot without even searching the news (Google News Algorithm presents suggestions that are particularly relevant for news-related queries).
Here are the front page news and the suggestions that make it obvious:

Of course, there are results that will always be on top (no matter if there’s related hot news or not), but these searches are good to be aware of as well:

Google News is less effective at phrase extension than the main Google Suggest:

On the plus side, however, these few suggestions are GOLDEN for your hot news coverage:

2. Google Image Suggest
Google Image Suggestions were rolled out in April 2009. Unlike popular belief, Image Suggest uses a different database from the main Google algorithm which makes it another interesting tool to add to your keyword research algorithm.
The main reason why website owners should keep an eye on Google Suggest is that Google Image Search is still the easiest way to get traffic, so be sure to target it carefully.
The Image Search suggestions include many specific words like “wallpaper”, “cartoon”, “photos”, “landscape”, “logo”, “pictures”:

3. Google Product Suggest
Google Product Suggest was launched in September 2009 and it is obviously an interesting tool for e-commerce focused projects. Type any search term and get up to 10 product suggestions:

It also works GREAT for expanding your initial search with more and more e-commerce suggestions:

Now will someone please create a tool based on this?
4. Google Video Suggest
In terms of video search, we are given two different options: Google Video search and Youtube Search. We have already described how Youtube Suggestions can help with keyword research and brainstorming, so let’s take a look at Google Video search this time.
Like YouTube Suggest, Google Video suggestions could work in certain niches for video optimization and keyword ideas (and inspiration):

5. Google Maps Suggest
Google “smarter” search suggestions were introduced in April 2010. They got smarter in two ways:
- Personalized suggestions (based on your search history and location): be sure to log out of Google before you check if your business pops up there (because you may have looked for it on a map multiple times and Google knows that).
- Enhanced database (The search suggestions include additional information, such as the address of the business or the district that a place is in.
The latter has made the tool invaluable for local search optimizers and reputation management:

Now, would anyone point me to some wicked tools based on different suggestion algorithms? I was unable to find anyone and it would be awesome if they existed!
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Thanks for the post. Very interesting to see how each form of search returns quite different suggestions to the others based on the content that it is designed to find.
Yes, it is amazing! And many people are totally unaware these are different databases.
Playing with all of them gives a lot deeper insight into your tartet keyword and audience.
Good post.
Someone made Twitter instant with suggestions like Google.
http://www.tuarroba.org/twitterinstant/
Yep! And here are a few more examples:
http://www.searchenginejournal.com/10-interesting-instant-search-engines-to-check-out/25193/
:)
Thanks for the informative post – it’s easy to see that the research would prove invaluable, no matter what segment of the web is your focus. For an IMer like myself, having Google Products suggest – and knowing this is a different segment of Google’s search algo – is priceless.
RTing, you rock.
Thanks for sharing the post. Yes, it’s that obvious information that you come to understand only after reading about it.
We have all been using the multiple suggest services but it seldom occurs to us how great keyword research tools they can make.
This is a terrific post and I definitely agree, you have a great blog overall. I will for surecome back to read more one day.