There are many good sites with details about round tower churches.
Norfolkchurches.co.uk and suffolkchurches.co.uk has many photographs including round tower churches, by Simon Knott. His photos are of both exterior and interiors, together with comments.
Norwich Diocese has many good photos, including round tower churches http://www.dioceseofnorwich.org/visiting
Norfolk Heritage Explorer has extensive records of round tower churches and information about Norfolk’s heritage in general www.heritage.norfolk.gov.uk
For Kent churches see John Vigar’s website- kentchurches.info and friends of Kent churches- Friendsofkentchurches.co.uk
Roundtowerchurches.de has text in English and German and includes photos of continental round tower churches.
Flickr has a great collection of round tower churches including many from Ireland.
Church Crawler Phil Draper has an excellent selection of church notes and information, with a blog and lots of photos on Flickr.
Norfolk Churches Trust – Norfolkchurchestrust.org.uk – takes care of redundant churches including round tower church at Barmer.
Churches Conservation Trust –visitchurches.org.uk– take care of 28 churches in Norfolk including Brandiston, Hales, Heckingham, Hellington, Moulton, Shimpling and South Elham in Suffolk.
The Ecclesiological Society – ecclsoc.org– has plenty of information about churches, including mass dials.
Anglo-Saxon churches website-Anglo-saxon-churches.co.uk– is a huge website with masses of information about all aspects of churches.
Greatenglishchurches.co.uk discusses and illustrates some East Anglian Anglo-Saxon churches.
http://thetempletrail.com/round-tower-churches-map/ A fascinating site which covers many kinds of religious buildings including round tower churches.
http://churchesofnorfolk.com/round-towers.php This is the old boi’s site and well worth a visit.
Using a drone, Bob Mitchell photographs round tower churches on www.roundtowerchurches.com
Norwich Diocesan Bellringers have information about towers – including round towers – and their bells http://ndar.org.uk/
Titchwell and Burham Deepdale are featured on the website for the six parishes of the Saxon Shore benefice – saxonshorebenefice.co.uk.
St Mary’s, Great Shefford, Berkshire website http://www.stmarysandststephens.org.uk/ has information about the church and under ‘fundraising’ progress of the Round Tower Restoration Project.
A wonderful site for those who love the angel roofs of East Anglia- angelroofs.com.
Masses of information about conservation and repair of historic buildings including churches and a good source of information about seminars and conferences. See the publication Historic churches 2013 for an article on mass dials. www.buildingconservation.com
City Bookshop, Norwich has books about East Anglian churches www.citybookshopnorwich.co.uk
Please share details of interesting sites – firstname.lastname@example.org