Potential usability issues with Cuil

Cuil, the new search engine looking for relevancy rather than popularity has seen the light of day on Monday. Developed by former Google employees, it claims to be able to crawl through 120 billion pages (that is 3x more than Google and 10x more than Microsoft’s Live search). But what about its usability?


Let's start with the positives: Cuil uses a similar colour scheme to what we are used to - blue main links, black text and green URLs are giving us that familiar search engine feel. What is new is the 2 or 3 column layout and that the pagination is embedded into the footer. Here are three usability issues I would think Cuil should address in the future:


Column layout:

The column layout is a nice idea, as it allows you to display information in an orderly, screen-filling fashion. Add imagery and users can easily make a connection between these call to actions. This usually works pretty well for a numbered amount of slots showing distinguishable information (say for example a list of all inspirational holiday ideas, with an image you can associate the idea with and a short descritption of what you can expect). However, for seach results I am struggling to understand the logic.
Users are used to seeing a results page in a coupon-style approach, meaning a long panel of information, sometimes preceeded by an image, a title, a short description and a call to action to read more. Google is the exact same, bar the image. It allows scanning and since information can be sometimes long or sometimes short it doesn’t cause any problems with the layout. In a column / panel style you are far more restrictive.


Pagination in the footer area:

Pagination is always welcome if you have a number of results. However pagination at the bottom of the page can lead to some unwanted results. From a usability point of view, users (especially of the older generation) are far more confident in using pagination if it is not entirely moved to the bottom of the page, as the risk of accidentally clicking outside the browser onto the task bar are far less, and you can easily distinguish between what is part of the site / browser and what isn’t.
Another important factor in a search engine is the ability to see what you searched for again (you will notice that all 3 major search engines - Google, MSN, Yahoo - have the search input fields pre-filled repeated at the bottom to show clearly what you searched for and how to amend the search without having to go back to the top.
With Cuil this is a different story: the pagination is at the bottom of the page, with links such as “About”, “Privacy” or “Add Cuil to FireFox” appearing before the pagination, thus alienating the pagination even more.


Categories

I think this is a very neat feature: the ability to filter the relevance by category (such as author or related themes). However I am not sure if the location of the filter as well as the accordeon effect are really that useful. I would have suggested a “advanced search” style panel or button which would then expand the categories, and instead of hiding the items within each category in an accordeon I would have every shown the 5-10 most relevant, or I would have given each category an ‘expand’ button. In my opinion this would improve the look and feel of the results filter and also make it (at least for certain generations) easier to use.


Conclusion:

I am sure that most of the usability issues and other issues I mentioned here are going to be fixed soon, and I am guessing by the time I get home from work today most of the result difficulties will have been looked at or are going to be in the process of being fixed. I believe that Cuil will become a great tool for relevant information to subjects one is researching, but up until now my money is going to be on Google, MSN and Yahoo