Make ill defined queries

• Short
• AV 2001: 2.54 terms avg,
  (80% < 3 words)
• Not increasing over time
• Imprecise terms
• Sub-optimal syntax
  (most queries without operator)
• Low effort

Wide variance in

• Needs, Expectations, Knowledge, Bandwidth

Specific behavior

• 68% look at one result screen only
  (increased over time)
• about 50% of queries are not modified
  (one query/session)
• Follow links - the scent of information ...