Walking and map websites:

http://www.streetmap.co.uk/

http://www.walkinginengland.co.uk/index.php  -  John Harris Walking in England

http://www.walkingworld.com/home.aspx

http://my.viewranger.com

https://wtp2.appspot.commapping facility

Health related sites

 http://www.lymediseaseaction.org.uk/about-ticks/ -   tick awareness

http://www.ehow.com/how_2209169_select-electrolyte-drink.html  -  hydration advice

http://walking.about.com/library/cal/ucwatercalc.htm  -  water calculator

http://www.drfoot.co.uk/  -  foot advice

Other useful sites:

http://leicestershire.gov.uk  -  go to 'parks and outdoor activities', then 'where to walk' including reporting footpath problems

http://www.stormtrack.co.uk/  -  local weather

https://www.gov.uk/government/publications/the-countryside-code/the-countryside-code  -  the Countryside Code