Gerry Shih of The Bay Citizen reports that the Chronicle building at Fifth and Mission is rapidly filling up with technology startups and “San Francisco’s most influential paper is finding itself increasingly isolated in the building it has called home since 1924.” The Chron is now on the third floor, while startups occupy the rest of the building. “I sometimes look out the window. There are all these interesting-looking people down there and I don’t know what they’re doing,” said the Chron’s Carl Nolte, who has worked there since 1959. “But they bring vitality to the place. I like that.” Shih attempted to find out what developer Forest City Enterprises has in mind for the building, but plans seem to be pretty hush-hush. Apparently the building will stay, but the rest of the site, including the old pressroom, will eventually be redeveloped.