Google’s Universal Search project has been well documented and for a while now it has been integrating its other properties (i.e. maps, product search etc) into the standard SERP. But whilst searching this week I noticed that once a search is completed which produces maps results Google are now limiting the natural search results to 7 listings for page 1. This has huge implications for search engine optimisers as it makes it even more difficult to get front page exposure. It is also safe to assume that as other types of results are integrated into Universal Search that this number could easily reduce further.
We have seen this with Ask as well with their new platform. Due to their inclusion of images video and definitions into their SERP they are now only showing 8 paid search listings. Google could easily follow suit as this can be used (as it has been by Ask) to free up real estate on the right hand side of the page. they will need to be careful how they go about doing this however as the paid listings are their main revenue driver and any reduction or change in their format could reduce earnings significantly.
It will be interesting to see how universal search pans out and if it has the desired effect. Personally if I want to search for an image I am more than happy to visit the image search page directly and likewise with video, but maybe for the less educated user a one stop search shop this would be more appealing.