The daypop.com interfae looks similar to the Google interface. The collection is selected by using the combo-box next to the search button. At the top of the page, there is a list of the various specialized weblog listings that you can see. It is not clear what many of those mean.

 

Perhaps that is why they included a definition of the page's function on each of these specialized query pages. Note the "What are the hop topics..." heading in the image below.

 

The site sometime uses confusing language. In the image below, the results have been segregated into two categories: "Most Popular Items" and "Highest Scoring Items." It is unclear as to how they are different.

 

In the image below, one can see that the results returned by daypop may not be relevant to many users, especially if they are not multi-lingual. Note that the two top posts are in different languages.