http://www.jiwire.com/search-wifi-hotspots.htm?state_id=0&num_per_page=&geocode_index=0&radius
http://www.jwire.com will give all this information including free services, a Google maps search will also give their location, but not whether free.
BT Openzone Locations Glasgow City Centre
BT Openzone Payphone Payphone West George Street Glasgow G2 1BP United Kingdom BT Openzone
BT Openzone Payphone Payphone Sauchiehall Street Glasgow G3 7UD United Kingdom BT Openzone
BT Openzone Payphone Payphone George Square (NW) Glasgow G2 2NR United Kingdom BT Openzone
BT Openzone Payphone Payphone George Square (NE) Glasgow G1 1DN United Kingdom BT Openzone
BT Openzone Payphone Payphone West George Street Glasgow G2 2NR United Kingdom BT Openzone
BT Openzone Payphone Payphone Ingram Street Glasgow G1 3BY United Kingdom BT Openzone
BT Openzone Payphone Payphone Cambridge Street Glasgow G2 3DB United Kingdom BT Openzone
BT Openzone Payphone Payphone Jamaica Street Glasgow G1 4QD United Kingdom BT Openzone
Churchills@Kirklee Other 1 Kirklee Road Glasgow G12 0RL United Kingdom BT Openzone
Corus Hotel Glasgow Hotel 377 Argyle Street Glasgow G2 8LL United Kingdom BT Openzone
Glasgow CC Ingram Street - Italian Centre Public Building/Space Ingram Street Glasgow G1 1DN United Kingdom BT Openzone
Glasgow Central Station - Network Rail Train/Bus Station Gordon Street Glasgow G1 3SL United Kingdom BT Openzone
Hilton Glasgow Hotel 1 William Street Glasgow G3 8HT United Kingdom BT Openzone
Hilton Glasgow Grosvenor Hotel 1-10 Grosvenor Terrace Great Western Road Glasgow G12 0TA United Kingdom BT Openzone
McDonalds Restaurant 283 Milngravie Road Bearsden Glasgow G61 3DQ United Kingdom BT Openzone
McDonalds Restaurant Castlemilk Shopping Arcade Glasgow G45 9AA United Kingdom BT Openzone
McDonalds Restaurant Finnieston Street Glasgow G3 8JU United Kingdom BT Openzone
McDonalds Restaurant 1841 Great Western Road Anniesland Glasgow G13 2UX United Kingdom BT Openzone
McDonalds Restaurant 10 Westhorn Drive Glasgow G32 8YX United Kingdom BT Openzone
McDonalds Restaurant Crow Road Partick Glasgow G11 7SH United Kingdom BT Openzone
McDonalds Restaurant Helen Street Glasgow G52 1EE United Kingdom BT Openzone
McDonalds Restaurant 1221 Gallowgate Glasgow G31 4EB United Kingdom BT Openzone
McDonalds Restaurant Maryhill Road Glasgow G20 9BA United Kingdom BT Openzone
McDonalds Restaurant 489 Pollockshaws Road Glasgow G41 2QQ United Kingdom BT Openzone
McDonalds Restaurant 12 Darnley Mains Road Glasgow G53 7RH United Kingdom BT Openzone
McDonalds Restaurant 1235 Springburn Road Glasgow G21 1UU United Kingdom BT Openzone
Ramada Glasgow City Hotel 201 Ingram Street Glasgow G1 1DQ United Kingdom BT Openzone
Sauchiehall Street - 1 Payphone Sauchiehall Street Glasgow G1 2RN United Kingdom BT Openzone
Sauchiehall Street - 2 Payphone Sauchiehall Street Glasgow G1 3DE United Kingdom BT Openzone
Toby Jug Bar/Restaurant 97 Hope Street Glasgow G2 6LL United Kingdom BT Openzone
This does listing not migrate well in Excel, format.