How can I buy Bitcoins in the UK now that Blockchain.info has suspended its deposits?
For small BTC purchases in the UK, https://localbitcoins.com/ (LocalBitcoins) is the only viable option right now that I know of.

There are other methods, mostly involving bank transfer arrangements, but be very careful to figure out how much you end up paying in total fees for it. It doesn't make much of a difference with large BTC orders, but for small amounts it's a fair % of costs.