Activists on Friday were distributing white ribbons, the protest symbol, and settling in at a plaza on a central boulevard.
Street protests in Moscow erupted on Sunday the day before Putin’s inauguration. More than 400 people were arrested after the sanctioned rally turned into clashes between the protesters and police.
Activists have been staging flashmobs throughout town since Monday, spending nights on the street. Two most prominent opposition leaders were detained Wednesday for disobeying police orders.
The protests have been likened to Occupy Wall Street. Thursday night was the first night when no detentions were reported.