A pair of tech-savvy Republican activists have started a new online, interactive fundraising tool that they say will help energize the conservative grass roots and further close the gap with their more high-profile "netroots" liberal counterparts. Slatecard.com, which opened to the public yesterday, aims to be a clearinghouse for Republican presidential and congressional candidates who want to reach grass-roots voters who haven't normally been included in traditional media outreach efforts, such as direct mail or large-scale fundraising events. "Not everyone can, or wants, to go to the traditional chicken-dinner fundraiser," said Slatecard.com co-founder David All. "This lets Republican candidates hear...