Here are links to the analysis of recent - and not so recent - NBA Drafts. Below you will find the tables reporting the career performance of the players drafted, as well as a discussion of the stories the numbers are telling.
The 1991 Draft (First and Second Round) Looking Back at the 1991 Draft
The 1992 Draft (First and Second Round) Looking Back at the 1992 Draft
The 1993 Draft (First Round) Looking Back at the 1993 Draft
The 1994 Draft (First Round) Looking Back at the 1994 Draft
The 1995 Draft (First Round and Second Round) Looking Back at the 1995 Draft
The 2006 Draft (All Rookies with 500 minutes played) Looking Back at the NBA Draft - Part One
The 2007 Draft (College performance of drafted players) Looking Back at the NBA Draft - Part Two
Win Score and the NBA Draft (authored by Erich Doerr)