Google Labs releases Similar Images and Google News Timeline

On April 20th, Google Labs released Similar Images and Google News Timeline as new additions to its products. Here is the press release.
The idea of Similar Images is using visual similarity, so when you don't know the right words to describe what you are looking for, you can type something then click the similar images link to narrow down your search. Live Search has same feature (before Google). I have tried a little bit both (not intensively), fell like that Google image search and similar images have better/more relevant results.

Google News Timeline allows users to view news and other data sources on a browsable, graphical timeline. Available data sources include recent and historical news, scanned newspapers and magazines, blog posts, sports scores, and information about various types of media, like music albums and movies. The display options include day, week, month, year, and decade. You can drag horizontally anywhere on the timeline to move forward or backward through results or click on the arrows on the navigation bar to scroll your results, or press and hold on an arrow to continue to scroll. Click "Add more queries", you can search spacific newspaper, magazine or blog to add to your search. I was wondering if there is a source list or some sort of source information, but I couldn't find any. There is no advanced search where users can combine several search terms. First impression: more comfortable with browsing but lack of search functions and flexibility of retrieval of data.