  We summarise recent deep, rapid GRB follow-up observations using the
RoboNet-1.0 network which comprises three fully-robotic 2-m telescopes, the
Liverpool Telescope and the Faulkes Telescopes North and South. Observations
begin automatically within minutes of receipt of a GRB alert and may continue
for hours or days to provide well-sampled multi-colour light curves or deep
upper limits. Our light curves show a variety of early afterglow behaviour,
from smooth, simple or broken power laws to 'bumpy', for a wide range of
optical brightness (from the unprecedented faint detections of GRB 060108 and
GRB 060510B to classical bright ones). We discuss GRB 051111 as an example of
how the combination of optical and X-ray light curves can provide insight into
the circumburst environment, in particular the role played by intrinsic
extinction soon after the burst.
