Here are links to some of the latest reports on the fighting in Ukraine:

http://vineyardsaker.blogspot.com/2015/02/ukraine-sitrep-debaltsevo-cauldron.html

http://vineyardsaker.blogspot.com/2015/02/05022015-ukrainian-crisis-news-latest.html

http://vineyardsaker.blogspot.com/2015/02/05022015-military-report-of-novorossia.html

http://vineyardsaker.blogspot.com/ has been closely covering the situation with frequent updates.