Stop trying to get tenure and start trying to enjoy yourself, an article by Gary Lewandowski, was sent to the ESWN list and provides advices to early career scientists concerned about tenure. The article is available at http://www.insidehighered.com/views/2008/09/22/lewandowski
Another recommended article about tenure, was put together by Monty Graham for the related DIALOG symposium participants. See http://www.disccrs.org/reports/tenuretips.pdf
Lastly, http://disccrs.org/career.html contains other resources on career development developed through the DIALOG and DISCCRS early career symposia.