Here are some useful links:
Street maps www.streetmap.co.uk
HF Holidays www.hfholidays.co.uk
Brighton & Hove Council www.brighton-hove.gov.uk/index.cfm?request=c1156603
The Argus www.theargus.co.uk
Weather forecast http://www.yourweather.co.uk/
http://uk.weather.com/weather/10day-Brighton-UKXX0215
Walking in Sussex https://www.walkinginengland.co.uk/sussex
Burwash Walks www.burwashwalks.com
Train Timetable, etc. https://www.thetrainline.com/
Reporting broken stiles, etc.
East Sussex: Send an email to rightsofway@eastsussex.gov.uk
West Sussex: http://www.westsussex.gov.uk/leisure.aspx