Hi
Census entries from 1841/1901 can be seen at
www.Ancestry.co.uk which is a paysite and is somewhat expensive. If you are looking for census entries just post a request on the appropriate county board and I'm sure that a Rootschat member will be only too happy to find the info for you.
www.FreeBMD and
www.UKBMD are free sites which give info on births, marriages and deaths. Although not complete they have some very useful information.
The full birth, marriage and death indexes can be viewed at
www.Ancestry.co.uk completely free.
www.FamilySearch.org contains information extracted from parish records along with member submitted info.
www.FamilyHistoryOnline is a paysite which gives info on births, marriages, deaths, burials etc., again this is not complete.
Many Rootschat members hold copies of parish records and again would be only too happy to look for information for you. This is a very friendly site and people are always willing to help.
I'm sure others will be able to add to this but hope this helps a little.
Best regards ... Sheila