diff --git a/main b/main
index 18f8763ba31a301c996cdd1c228293b187a3e55c..948a08f5ae18fd805bebc647f53618cafd121a27 100755
--- a/main
+++ b/main
@@ -6,7 +6,7 @@ import sys
 import argparse
 import logging
 
-from o3skim import sources
+from o3skim import sources, utils
 
 
 def cmdline_args():
@@ -28,6 +28,19 @@ if __name__ == '__main__':
     logging.basicConfig(level=getattr(logging, args.verbosity))
 
     # Configuration load
-    config = sources.load(args.sources_file) 
-    logging.info(config)
+    config = utils.load(args.sources_file) 
+    logging.info("Configuration found at: %s", args.sources_file)
+    logging.debug("Configuration info: %s", config)
+
+    # Create sources
+    logging.info("Loading data from './data' ")
+    with utils.cd("data"):
+        ds = {name: sources.Source(name, collection) for
+              name, collection in config.items()}
+    logging.debug("Sources loaded: %s", [k for k in config.keys()])
+
+    # Skim output
+    logging.info("Skimming data to './output' ")
+    with utils.cd("output"):
+        [source.skim() for source in ds.values()]