I haven't done enough of this, but I would love to direct you to the Tutor/Mentor Connection's extensive library of documents ... docs that offer analysis and strategy pertaining to tutoring/mentoring/collaborating, and ultimately addressing poverty and its effects, through tutoring and mentoring. Please take a look at the Tutor/Mentor Institute to learn more about why your participation through volunteering and donation is so important to the entire community.
Here is a map that shows the locations of programs that work in a purely tutoring capacity.
(click on the map above to see "full-sized" version)
Here is a map that shows the locations of programs that work in a purely mentoring capacity.
And here are programs that use a mixed tutoring AND mentoring strategy, similar to the one espoused by Cabrini Connections.