I'm interested in pruning information for tomatoes.  Is it a good
idea?  What are the typical forms I can prune.  I'm looking for good
solid information from reputable places, and pictures are always a
plus.  Thanks!

Hi! Thanks for the question.

I have found the following tomato pruning tips from different
articles:

“If the tomato plant parts are clearly in mind, you are ready to
prune. Notice that at the angle formed by the attachment of the
leaflet branch to the main stem a side shoot or sucker will grow. (See
Figure 4) This occurs at all such attachments."

“Pruning is simply the removal of these side shoots or suckers when
they are three to four inches long. Suckers can easily be removed by
grasping with the thumb and forefinger and pulling outward and
downward. Do not remove the suckers with a knife, as virus diseases
can easily be transmitted from plant to plant.”

“When removing side shoots or suckers, be careful not to pinch out the
growing tip of the plant!”

“During the early part of the season and especially during the month
of June, prune at least once a week. During this period, growth is
rapid and vigorous. Later, after three or four clusters of fruit have
set, pruning every two weeks may be adequate.”

Pruning and Training Tomatoes
Arthur E. Gaus and V.N. Lambeth
Department of Horticulture
http://muextension.missouri.edu/xplor/agguides/hort/g06460.htm
--------------------------------------------------

“Avoid pruning leaves or stems while the fruit is ripening, and
consider shading the fruit.”
The article goes into greater detail so better read to get a better
perspective.

“When Good Tomatoes Go Bad” by Charlie Nardozzi
http://doityourself.com/vegetables/goodtomatoes.htm
--------------------------

“Moderate to heavy pruning will leave your plants with smaller vines
and larger fruit that will mature earlier. Pruning keeps plants and
fruit off the ground, helping to control diseases. Although pruning
requires a lot of effort, the benefits of doing so are more marketable
fruit, easier harvesting, and reduced injury to plants when multiple
harvests are being made. This practice is most profitable when a long
harvest season is possible and when there is uniform fruit production
over the season. “

From Pruning Fresh Market Tomatoes By: Mark Lancaster, Agricultural
Extension Agent
http://henderson.ces.state.nc.us/newsletters/veg/00-06/6.shtml

-------------
The following are other tomato pruning articles which maybe of
interest to you.

Pruning and Supporting Tomatoes
http://www.ces.ncsu.edu/depts/hort/hil/hil-28-g.html


What's Wrong with My Tomatoes? By: Dr. Helene Dillard, Dept of Plant
Pathology & Dr. Steven Reiners, Dept of Horticultural Science
http://www.nysaes.cornell.edu/pubs/ask/tomatoe_qa.html

GROWING TOMATOES
http://www.msue.msu.edu/msue/imp/mod03/03900103.html#visuals

How To Train Tomatoes 
http://doityourself.com/vegetables/train_tomato.htm

Search terms used:
Pruning tomatoes

I hope this is what you were looking for. Please ask for a
clarification if you have a question or if you would need further
information. Enjoy the show!

Regards,
Easterangel-ga

The first link was by far the best.  Thanks!