Just move your mouse over the desired formula, and a button for this search will pop up. More info at searchonmath.com/extensions.
Search Bar Fixing for Google
The simplest solution for Google Search Bar was always in sight
Search the online JLect Dictionary.
Distribute searches among many search-engines to find new answers and stay private.
Search any and see others searching same. Chat with other Searchers in real-time. Create Alerts to be notified when others search.
Аэропорты мира ✈
Schedule airport, getting to the airport and its location, panorama
YAWE (Yet Another Wiki Extension)
View and Search for Wikipedia Articles
BKK FUTÁR (Nem hivatalos)