Goollery, which is a combination of the words Google and Gallery, is a collection of Google related projects on the web. Or, as the developers put it: “Goollery is an online gallery dedicated to collect, archive and showcase the most creative, fun and innovative Google-related projects from around the world.”

The Google projects that are displayed on the website are divided into various categories including Google Search, Google Earth or Youtube. The second tier navigation menu contains the Google related projects that have been added to the selected category while the majority of screen space has been reserved for a picture (or pictures) and short description of the Google related service.

A project link is available on every page that will load the web service in a new web browser tab or window. Users and web developers can submit new Google related projects which will be reviewed by the webmasters and added to the service if they meet the quality guidelines.

Goollery offers links to interesting Google related projects. It would be nice if the developer’s would add a date for each Google project that they have added to the website so that the age of the project becomes clearer to the visitor.

Using Solar Roof is easy. The user begins by entering an address which Google Maps will then show on the map. He then begins to place array segments around the roof of the house that mark the house on the map, the part that should be analyzed should appear in yellow afterwards.

The script begins to calculate various parameters like the potential, the power per sq. ft., the area in sq. ft and total peak power as soon as the first array marker has been placed on the roof. Once all markers have been placed it is important to click the first marker again to signal that the roof has been completely marked.

After that the orientation marker has to be placed on the map. The orientation marker determines the direction that the roof slopes. Lastly the roof tilt angle has to be selected.

A click on the performance tab will load a monthly solar performance graph which will show the monthly output level in kilowatt hours. The calculations take region characteristics like weather cycles and cloud cover into account.

Solar Roof will also provide a financial analysis in the third tab. Users who enter their monthly electric bill and utility company will see how a solar roof would affect those bills. In the end it displays a chart that shows the break even date and the net costs if solar panels would be added to the roof.