The Moscow Project has put together a comprehensive chronological list of contacts that have been discovered to date and the "lies Trump's campaign, transition, and White House told to hide them."
Here is more about the Moscow Project:
The Moscow Project is an initiative of the Center for American Progress Action Fund dedicated to analyzing the facts behind Trump’s collusion with Russia and communicating the findings to the public. The Moscow Project’s team employs a multi-disciplinary approach towards its work, leveraging a unique combination of experience and expertise gained on Capitol Hill, at the State Department, and in private industry to examine this complex and sprawling series of events stretching back decades.
The co-founder and director of the Moscow Project is Max Bergmann, who is a senior fellow at CAP, where he focuses on European security and US-Russia policy. Bergmann served in the State Department of the Obama Administration.
Here is USA Today's story on the updated Moscow Project report.