Some ideas for the plone.net sprint:

• Add checkboxes to a provider that indicates whether they do development, hosting, training, etc.
• Make default filters/views that can be used here (ie. "show me only training providers")
• Make sure the rendering of sites is consistent across the site (under providers it lists sites without screenshots etc, why? :)
• Update and investigate PloneJobBoard for Plone 3.0 — having a job board for smaller Plone jobs (and of course the larger ones) is very important, and shows maturity and activity
• Review sites/providers! :)