I just found some interesting links about heraldry in Britain:
Main page:
http://www.heraldry-online.org.uk/main.htm scroll down to find the links:
Families, for example:
Maxwell
http://heraldry-online.org.uk/maxwell/maxwell-arms.htm,
Churchill
http://heraldry-online.org.uk/churchill/churchill-arms.htm,
Mitchell
http://heraldry-online.org.uk/mitchell/mitchell-arms.htm,
Boyd
http://heraldry-online.org.uk/boyd/boyd-arms.htm,
Brodie
http://heraldry-online.org.uk/brodie/brodie-arms.htm,
Dewar
http://heraldry-online.org.uk/dewar/dewar-arms.htm,
Baxter
http://heraldry-online.org.uk/baxter/baxter-arms.htm,
and places of interest, with nice photos, for example:
Chichester Cathedral
http://heraldry-online.org.uk/chichester/Chichester.htm,
St Mary’s Church, Hartley Wintney
http://www.heraldry-online.org.uk/hartley-wintney2.htm,
St Mary's Church, South Harting
http://www.heraldry-online.org.uk/harting/harting.htm,
All Saints' Church, Crondall
http://www.heraldry-online.org.uk/hart_heraldry/crondall.htm etc.