SQL column name search
You have two options. Option 1 is to use the system views:

select
    t.name
    ,c.column_id
    ,c.name
    ,st.name
from
    sys.tables t
    join sys.columns c on (t.object_id = c.object_id)
    join sys.types st on (c.system_type_id = st.system_type_id)
where
    c.name = ''


Option 2 is a free add on from Red Gate Software called SQL Search.