Tim Radney of SQLskills gives an overview of his approach to SQL Server performance tuning, from system configuration, to I/O latency, to high cost queries.
Tim Radney (@tradney) of SQLskills shows how to measure your network so you have more ammo to take to your network team when there is a performance issue.
Aaron Bertrand (@AaronBertrand) walks through a solution that allows you to achieve some of the benefits of partitioning without the Enterprise Edition price tag.
Dan Holmes (sql.dnhlms.com) talks about a solution he developed to manually coerce statistics to be more accurate and produce better, more predictable execution plans.