If a company is offering this facility, you will receive details with other information about the meeting.
Generally, there are two ways of voting. If you receive a paper proxy form, you can go to the named website, usually http://www.sharevote.co.uk and log on using the code number on the proxy form.
If you already have a Shareview holding however, the process is even easier. Just log on to your Shareview holding and select 'Company Meetings' from the left-hand menu.
Details of current meetings where you can send an instruction online will then be displayed. Just click on the highlighted text to confirm your instruction.