Use the search forms to the left to search for recent funding activity in Silicon Valley, or for the most active investors in specific sectors or rounds of funding. You must be registered to use these search features, but you can sign up for a free 2 week trial by clicking on the 'Free Trial Registration' button. The lists of sample maps at the bottom of the page are viewable for everyone, so check them out if you're not sure about registering yet.
You can also search for Companies, People, and Investors, by typing their names (separated by commas) into the 'Quicksearch' box at the top of the page. Or you can click on the 'Search' tab to the left for more advanced search options, including names, keywords, rounds of capital raised, and many other attributes.